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Top 10 Best Cryptocurrency Wallets for 2019 (Re-Post)

Top 10 Best Cryptocurrency Wallets for 2019 (Re-Post)
https://preview.redd.it/g0j3lqvymxi31.png?width=1500&format=png&auto=webp&s=f1024902cc5c9ad6f0417a419d0c1b4e75c2c13f
You've asked for a list to find the Best Cryptocurrency Wallet, We've delivered! Bitcoin prices have been rising throughout 2019, and have now hit over $10,000! Pair that with newer cryptocurrencies such as ether along with an increasing acceptance of blockchain tech plus media and government coverage, cryptocurrency wallets are needed now more than ever. Whether you are looking for the best cryptocurrency wallets, Bitcoin wallet or the best Ethereum wallet, we've got you covered.
These best cryptocurrency wallets, best Bitcoin wallets, and best Ethereum wallets have proven to be crowd-pleasers, and each comes with its own array of pros and cons that are mostly dependent on user preference:

1. Ledger Nano S (Best Ethereum Wallet)

The Ledger Nano S is a cryptocurrency multi-asset hardware wallet that looks like a folding flash drive. It can store Bitcoin, Ethereum, and other Altcoins. The Ledger Nano S connects via a USB cable and requires interaction with the device to confirm transactions. Ledger’s Nano S is also U2F authentication compliant for use with other services and can run multiple apps. The Ledger Nano is safe, relatively inexpensive, malware proof and cannot be hacked. For those reasons, we think it is one of the best cryptocurrency wallets. See #6 for the Nano's beefed up brother, the Ledger Blue!
Ledger Nano S is available in saffron yellow, flamingo pink, jade green, lagoon blue, and black.
According to Ledger, these are in stock and shipping.
Cost: $59
Buy Direct Here > www.LedgerWallet.com

2. Coinbase (Best Bitcoin Wallet)

CB is an established and dedicated cryptocurrency exchange, a Bitcoin, and Ethereum wallet, and is supported in more than 30 countries. They have helped over 10 million users transact more than $20 billion in cryptocurrency exchanges and is the industry leader for cryptocurrency exchange. They have a great user interface that is easy to use.
Free to sign up but they do charge a minimal transaction fee depending on the size of the transaction. Simply sign up, connect your bank account or credit card, then buy your cryptocurrency. You will need to verify your identity by providing 1 or multiple pieces of identity, depending on how much you buy. Once you've purchased your Bitcoin, You can easily transfer it to your “vault” for better protection. It may take several days to receive the first Bitcoins you purchase. Be sure to turn on 2-factor authentication for additional protection to your account, you can download this on any cell phone using Google Authenticator or Authy.
Sign Up Here > www.Coinbase.com

3. Ledger BLUE

The “Rolls Royce of hardware wallets! It is by far the most advanced hardware security gear on the market. Comes with a color large touchscreen, Bluetooth, and a rechargeable battery. Lightweight for easy transportation and storage. Works with multi currencies and extensible with other apps. Ledger offers enterprise-level security. If it wasn't for the high price point, Ledger would get our vote for the top 5 best cryptocurrency wallets.
Shipping: Available for Preorder, According to Ledger this will ship in late September 2017.
Cost: 229.00€ or roughly $270 USD.
Buy Direct Here > www.LedgerWallet.com

4. KeepKey

KeepKey is a simple hardware wallet that secures Bitcoin, Ethereum, Litecoin, Dogecoin dash, and Namecoin. Your assets are protected from hackers and thieves. They claim to be virus and malware proof because it does not have an operating system like your phone or computer. The firmware is 100% open source and works on PC, Mac, Linux, and Android. You can make modifications to their firmware or create your own, then run it. Keep Key has a great digital display and comes in a very appealing anodized aluminum and black polycarbonate case. They offer a 1-year limited warranty.
As of 8/29/2017, These are finally back in stock!
Cost: $99 USD.
Buy Direct Here > www.KeepKey.com

5. TREZOR

TREZOR is an industry-leading hardware multi-cryptocurrency wallet. They were the original hardware wallet and claim to be the most secure. These are quick to setup and easy to use. They offer a Google Chrome extension that communicates with your hardware. TREZOR combines an easy setup with a small, durable token for authenticating and storing cryptocurrency. The token can also act as a security key for the new U2F authentication process.
These are available in black and white colors.
Customers tell us these are shipping 4 days after the order is placed.
Cost: 89. € or roughly $10 USD. They also offer a “Multipack that contains 3 Trezors and gives you a 22€ discount.
Buy Direct Here > www.Trezor.io

6. StrongCoin

StrongCoin one of the best cryptocurrency wallets. They are a hybrid wallet allows you to send and receive Bitcoins just like any other wallet. However, the Bitcoin private key which is required to send money is encrypted in your browser before it reaches their servers. They can never hold your bitcoins ransom because you are able to download your entire account as a PDF. You can purchase bitcoins directly to your StrongCoin wallet so they are never at risk of theft on an exchange. StrongCoin is the longest running Bitcoin wallet. 110,000 users have signed up and it appears to be a very well known and widely used company. Their wallets are free to create but they do charge a small transaction fee depending on the amount of Bitcoin.
Sign Up Here > www.StrongCoin.com

7. Exodus

If this page were titled The Best Designed Cryptocurrency Wallet and not Best Cryptocurrency Wallets, Exodus would be the clear winner. Exodus is the first desktop software wallet to have ShapeShift built into the interface in order to allow for rapid conversion between various altcoins and cryptocurrencies. Beyond having ShapeShift integration, Exodus is a multi-asset wallet and lets you store your private keys in one application with a customizable user interface. You have full control over your encrypted private keys, they have beautiful live charts and you can customize the look and feel of their interface. They offer 24/7 support via their help desk or email which makes communication nice for late night projects. They also offer a Slack channel for communication with other users. Exodus is available for Windows, Mac, and Linux. This software is free to download.

8. Jaxx – Ice Cube

Jaxx established their brand by allowing for cross-platform support with their crypto wallet. They have added integration support for ShapeShift and gives users a multi-currency wallet that they hold the private keys for. Jaxx announced the “Ice Cube” which is a hardware wallet with a camera and cellular chip for broadcasting transactions that never connects to the internet. The Ice Cube is water and fire resistant. This company is small and can also be stored in a safe or safety deposit box for security. Jaxx has a beautiful user interface and visible code, you can tell they have designed this product for the amateur as well as the most experienced Crypto enthusiast.

9. Mycelium

Granted the prestigious “Best Mobile App” award by Blockchain.info in 2014, the wallet provides the ability to send and receive bitcoins whilst benefiting from bank-grade security. Mycelium is an Android-based multi-asset cryptocurrency wallet that has been tested by hundreds of thousands of users. At the time of writing this, they had the most stars on Google Play. They are in the midst of integrating with a variety of third-party service providers to bring new and emerging applications into a realm of usefulness that can only be achieved with native functionality and a high degree of user trust. They currently integrate with Cashila, Glidera, Coinapult, Trezor, and Ledger. Mycelium also has hardware wallets and is working to further the development of decentralized applications (DApps). They are constantly upgrading this software. They are working on a personal finance tool to pay your bills and manage your finances and investments. This is the best Ethereum wallet and the best Bitcoin Wallet.

10. Electrum

Electrum was created by Thomas Voegtlin in November 2011, as a result, various developers have contributed to its source code. A software wallet that was designed to give users the freedom to manage their funds and private keys in a secure manner. Electrum allows you to store your private keys offline and integrates with some hardware wallets like TREZOR or Ledger products. Electrum utilizes decentralized servers to ensure minimal to no downtime.

Different Types of Cryptocurrency Wallets:

What is a Cryptocurrency Hardware Wallet?

These cryptocurrency Wallets store your information offline so it cannot be hacked. While it is more expensive than most other wallets, It can be a great investment. A lot of people buy 2-4 hardware wallets to spread the risk of losing one. We recommend storing this in a safety deposit box at your bank or in a very safe and secure place in your home. The downside of these wallets is losing your wallet, be careful! For security, we think these are the best cryptocurrency wallets available.

What is a Cryptocurrency Web Wallet?

These are the easiest wallets to use and the most convenient. Most websites will allow for 2-factor authentication through Google, text message, or Authy. This adds a great layer of protection. We have heard of very few cases where these accounts were hacked individually but we have heard of entire exchanges getting hacked which results in stolen bitcoins. We always keep some of our Bitcoin, Litecoin, Ethereum and other Altcoins in web-based crypto wallets so we can easily day trade and move funds around.

What is a Cryptocurrency Desktop Wallet?

These are great wallets for storing cryptocurrency. You don't have the concern of losing your wallet like a hardware cryptocurrency wallets. You don't have the concern of getting hacked like web-based cryptocurrency wallets. These desktop wallets are generally free or low cost. You are however at risk of losing your wallet if your computer fails or is lost or stolen. If you want to make sure you don't lose these wallets, we suggest printing them on a durable material like foam board printing. These can make for the best bitcoin wallet and also the best Etereum wallet.

What is a Cryptocurrency Mobile Wallet?

Both Apple and Android offer mobile app based cryptocurrency wallets. These are great because you can use them on the go and on the fly. We have read several reports on Reddit about fraudulent apps that steal your bitcoin wallet and all of its contents so please be sure to use a well known Mobile crypto wallet.

Link to original blog post: https://www.disruptordaily.com/top-10-best-cryptocurrency-wallets-for-2017/
submitted by Tokenberry to NewbieZone [link] [comments]

Bitsquare will support UASF Bitcoin not BitMainCoin

Today Bitmain release a blog post about their plans how to deal with a UASF fork. Here is another good summary of Jimmay Song: https://medium.com/@jimmysong/examining-bitmains-press-release-6b47b0646f15
This announcement of Bitmain is great news for Bitcoin as it removes a lot of uncertainty and give a lot of support for the UASF side. So Bitmain has become the biggest supporters for UASF by making it easier for those who would have preferred a more cautious and conservative approach (supporters of BIP149 like me) to get a more clear position.
Why? Because the hard-fork which will very likely happen and the included features like 8 MB blocks (or even unlimited block size) as well as the heavily Bitcoin Unlimited influenced road map is a very drastic divergence from the current version of Bitcoin. Not to talk about the unhealthy influence of a monopolistic ASIC and mining company who have proofed many times how damaging they are for Bitcoin (ASICBOOST, Antbleed, empty blocks, blocking SegWit,...).
As it is a hard fork it is also much more clear which of both coins (if both should survive) will be considered the real Bitcoin and which one the Altcoin. Theoretically the unchanged Bitcoin chain might be a valid alternative as well (and the real Bitcoin), but it can be assumed it will not get sufficient support to survive and would be vulnerable to the wipe-out risk as well as replay attacks.
So that reduces the choices to 2 options: - Bitmain Coin (Hardfork with 8MB blocks and BU road map) - UASF Bitcoin (original Bitcoin with enforced SegWit activation)
Should be an easy choice for most readers. SegWit itself has an overwhelming support. Only the way and strategy how to activate it was not supported so widely. That is now out of question as not supporting UASF means to support Bitmain. You cannot be neutral or passive.
There is another important factor. The hard fork will require software updates much more extensive than the UASF version bit change. Beside risks, that will mean that all agnostic, neutral and passive users or companies will likely go with UASF as he least disruptive, expensive and risky option. Same is true for SPV wallets. BitcoinJ which is used for Bitsquare has a check for the block size and will reject the Bitmain chain. So we have less troubles with a potential mess of mixed chains.
Thought there are still many other open problems and risks. We can expect that Bitmain will use its hash power to attack the UASF chain if they feel need for that. This might lead to all kind of unpleasant situations like long confirmation times, unclear amount of confirmations to be considered safe, very volatile tx fees and more. It is also not clear which forms of attacks can occur and how to protect users from those (e.g. Bitmain could silently mine on UASF and then make huge re-orgs, invalidating a lot of blocks and if the Fiat/Altcoin side has been settled it would lead to a BTC buyer who has lost his BTC. For an exchange that means undefined and uncontrollable risks (also on the legal side). Beside the risks there would be likely a huge effort for support and arbitration which would kick us back with our road map.
For all those reasons we need to halt trading on Bitsquare by revoking the 2 arbitrator nodes (both are run by me). Users cannot take an offer or create an offer if there is no arbitrator available.
But no worry we have an exit strategy!
With the next release we will support multiple base currencies. So the user can choose which base currency or market he or she wants to use. Currently it is only Bitcoin, then it will be Bitcoin, Litecoin and Doge. Dash is planned as well but requires more effort. Namecoin still has not P2SH but will added as soon that is implemented. All the other interesting coins which are very different to Bitcoin cannot be added soon as it requires a lot of development effort, but it is planned for the future to extend it to those as well. We started with those which caused the least effort and Litecoin has sufficient liquidity and hash power to be considered a realistic alternative.
By using another coin as base currency Bitsquare is not dependent on what is going on the Bitcoin block chain anymore and all the problems which might arise from the fork sceanrios are out of system, similar to the banking system or other altcoins. The selection of Bitcoin will be possible but arbitrator will only start to register once the situation is settled and can be considered safe again. Might be in 1 week, might be in 3 months, who knows...
So people can trade both the UASF Bitcoin and the BitMainCoin against LTC or DOGE in Bitsquare. The traders are responsible for themselves how to deal with any possible risk and problems when sending the Bitcoin. It is just another altcoin and the selected base currency (LTC or DOGE) is the currency which provides the security by utilizing features like MultiSig. Bitsquare does not know anything about the Bitcoin network in such a case.
There is the question how to name those competing chains. I would suggest to keep the ticker BTC for the UASF Bitcoin and use the UASF in brackets as post fix to make it more explicit (e.g. BTC -Bitcoin (UASF). For the Bitmain coin I would suggest either BMC or BUC (Bitcoin Unlimited Coin). Be assured the selection for the ticker BUC has nothing to do with the many bugs the Bitcoin Unlimited devs have produced in the past. ;-)
Ready now to add the UASF prefix to the Bitsquare twitter handle. Thanks Bitmain for making the situation more easy.
submitted by Manfred_Karrer to Bitcoin [link] [comments]

Basic Bitcoin security guide

Hello,
This post is to give you a quick introduction into Bitcoin security. While nobody can guarantee you 100% security, I hope to mitigate some problems you can run into. This is the “20% of effort to get you to 80% safe”.
First of all, you have to determine how much money you want to hold in Bitcoin and how much effort are you willing to put in. If you are happy just holding a few dollars worth and don’t care if you lose them, that’s one approach to take. For everyone else, lets get started.
Password strength
A lot of the times how secure your money is will be determined by the strength of your password. Since in the worst case scenario we are talking about someone trying to brute force your wallet, casual online passwords are too weak. Under 10 characters is too weak. Common words and phrases are too weak. Adding one number to a password at the end is too weak.
Moreover, you can consider your password much weaker if you:
If you want a really strong password:
Wallet security
Now we are getting to the meat of things.
There are a number of wallets available to store your hard earned bitcoins. If you have a decent amount of coins to store, you should look into software wallets - BitcoinQT, MultiBit, Armory or Electrum. They are among the best place to store your money safely (provided your computer is secure as well). Chose one you think best suits you, install it and encrypt your wallet file with your strong password. You should take your wallet file and back it up (location of the file is different for different clients, so you have to do some research as to where to find that file). Back it up on a CD, safe USB drive or the like. Keep them safe. If you lose that file, you will lose your money.
A quick word on deterministic wallets. Electrum and Armory allow you to create wallets from a seed. If you use the same seed later, you can recreate your wallet on other machines. With deterministic wallets, you only need to keep that seed secure to have access to your money.
In comparison, in BitcoinQT's traditional wallet, every address you use is random, meaning that after you send 50-100 outgoing transactions your backups can be obsolete. Always keep an up-to-date backup of such wallet file if possible.
Okay, sometimes you need to have your Bitcoins with you when you leave your computer. In this case, you should look into either online or mobile wallets. A staple for both of those is Blockchain.info, but there are others to chose from.
A good rule of thumb with these is to not store more money in them than you can afford to lose. They are best used as a convenient way of accessing some money, not storing your savings. Online wallets are especially vulnerable to their servers getting hacked and people’s money getting stolen.
What to keep in mind while using online wallets:
  • Use a secure password (the more money you have in them the stronger the password should be)
  • Always keep a backup of your wallet in case you need to recover your money
  • Whenever possible, enable two factor authentication
  • Don’t use your online wallets from unsafe computers
Cold storage
Sometimes you want to store your bitcoins for a long time in a safe place. This is called “cold storage”. There are a few ways one can do this.
First of all, paper wallets. They are nice for giving people small bitcoin gifts, but also for long-term storage if properly used. What you want to do is generate and print them offline. You can save the linked page for example and run that offline. If you are really paranoid, you can put it on read-only media and access that from a different computer. For really long term storage, use archival-grade paper.
Another approach to take is using a separate computer for storing your money that is offline 99+% of the time. You could set one up easily by buying an old laptop, reformatting it, installing Linux and a Bitcoin client. Generate an address on that machine and send money to it from your main wallet. Depending on how paranoid you are you can connect that computer to the Internet afterwards to synchronize data with the Bitcoin Network and then turn it off and put it away somewhere safe until it’s needed.
Brain wallets
Don’t. They are not for you. Unless you are a security-conscientious programmer, those are not for you.
Diversifying
Keeping all of your eggs in one basket is never a good thing. You should look into diversifying some of your Bitcoin assets in case your other storage methods fail. Some ways you can diversify:
  • Buy a physical Bitcoin. As long as you trust the coin creator such coins can be an effective cold storage
  • Invest - I wouldn’t recommend this for more than some trivial amount unless you know what you are doing, but investing in some Bitcoin stocks could be a way to get more money out of your bitcoins
How not to diversify:
  • Avoid keeping your bitcoins at exchanges or other online sites that are not your online wallets. Such sites can be closed down or disappear along with your money.
  • Alt-coins - there are few cryptocurrencies that are worthwhile, but most of them are just Bitcoin clones. If a currency brings nothing new, it’s worthless in comparison to Bitcoin. Namecoin is a distributed domain name server (although recently it had a fatal flaw uncovered, so be warned), Ripple is a distributed currency exchange and payment system. Litecoin will only be useful in case Bitcoin’s hashing algorithm gets compromised (very unlikely at this time). Beyond that there are few if any alt-coins that are a worthwhile way of diversifying.
Accepting payments and safety
We’ve covered safe ways to store money, now a quick note about bitcoin payments and their safety.
First of all, when you are sending a transaction, pay your fees. Transactions without fees can take forever to propagate, confirm and clear. This can cause you a lot of stress, so pay your fees.
Secondly, when accepting large Bitcoin payments (say you want to suddenly cash in a gold bar into bitcoins), wait for at the very least 1 confirmation on those transactions. 6 is best, but having even 1 confirmations is a lot better than having none. This is mainly a rule of thumb for the paranoid (I wouldn’t be doing this for most casual transaction), but maybe it will save you if you are dealing with some shady people.
Wrapping up...
That should cover the basics. If you want to read more about Bitcoin’s security in general, here is my master thesis on the subject. A lot of questions about Bitcoin and security have also been answered on Bitcoin StackExchange - be sure to check it out.
Comments and improvement suggestions welcome.
EDITS:
  • Removed link to insecure site
  • Removed random article section
  • Added information about deterministic wallets
submitted by ThePiachu to Bitcoin [link] [comments]

Blocknet 2018: What to look forward to!

With 2017 coming to an end, we wanted to provide the community with some updates regarding what is on the horizon for Blocknet in 2018, but first let’s take a look at what this community has accomplished so far.
2017 was a busy year for Blocknet! With the launch of the new production chain, the Service nodes launch on mainnet, the partnership with VSA to build the Blocknet UI (as well as the UI Reveal) and the implementation of the Community Governance System, it has been a very productive year. This is what was achieved…
Blocknet in review 2017:
BitBay (BAY), Bitcoin (BTC), Bitcoin Cash (BCH), Blocknet (BLOCK), Dash (DASH), Decred (DCR), Digibyte (DGB), Dogecoin (DOGE), Dynamic (DYN), GameCredits (GAME), Faircoin (FAIR), HShare (HSR), LBRY Credits (LBC), Litecoin (LTC), Monacoin (MONA), MonetaryUnit (MUE), Namecoin (NMC), NavCoin (NAV), Particl (PART), Peercoin (PPC), PIVX (PIVX), Potcoin (POT), Qtum (QTUM), Sequence (SEQ), Stratis (STRAT), Syscoin (SYS), Vericoin (VRC), Verge (XVG), Vertcoin (VTC), ViaCoin (VIA).
Recent Developments
In addition to the above, there are some other recent developments we would like to mention:
What is on the Horizon for Blocknet in 2018?
Moving forward into 2018 there are many exciting developments to look forward to:
Note 1: Upcoming milestones are subject to change, and some require new ground be broken in crypto, and thus are to be interpreted as intents, not commitments. Development is in an agile manner and so is not to deadlines; Rather, continual progress is to be expected.
Note 2: All names are Rocketchat community handles.
A very merry Christmas and a happy and prosperous new year to the community! 2018 will be fantastic!
submitted by Blocknet to theblocknet [link] [comments]

Atlas ATS launches Options markets(calls& puts) in BTC & other alt-coins

Atlas ATS Inc. Launches ‘Atlas 2.0’ Atlas ATS is pleased to announce the launch of ‘Atlas 2.0’ exchange platform now supporting trading in alt coins, options for digital currency as well as an array of advanced native order types for FIX API clients. New York, NY March 22, 2014
New York based Atlas ATS Inc. has announced the launch of ‘Atlas 2.0’ on both its Hong Kong and North America based digital currency exchanges. The new platform provides trading for major alternative digital currencies, derivative products, a new multi-signature transaction wallet and a larger selection for advanced order types for clients using the FIX interface.
Atlas provides the digital-currency space with a Wall Street grade exchange platform deployed on a global, secure, low latency private network managed by Perseus Telecom.
Atlas ATS is making this preview available to existing clients ahead of the public announcement, and as a show of gratitude for support and loyalty, Atlas ATS is awarding a $10 credit to each client for the first 100 clients to place a trade in options or any of the newly available alt coins. The credit is limited to $10 per user.
All open orders on the system are being cancelled for the upgrade of the platform. Clients will need to enter new orders once the system upgrade is completed.
The following features are available immediately on newest release of Atlas 2.0
Major Alt Coins such as litecoin and namecoin:
Atlas ATS now supports three major alt coins providing more products to trade.
Digital Currency Options for bitcoin and litecoin:
Atlas ATS presently offers two types of options contracts 'Calls' and 'Puts', which confer upon the owner the right to buy and sell, respectively, the underlying crypto-currency at a set 'strike' price on a given 'expiration' date.
Fees on options trades follow the same add/remove (A.K.A: maketaker) model. The rebate earned when adding liquidity is 0.1% and the fee for removing liquidity is 0.3%.
Advanced Order Types Available via FIX API:
Atlas 2.0 now supports trailing stops, stop limit, market, reserves, discretionary, and mid-point peg orders. Additional order types will be made available to website and Web API users in the in the next major platform upgrade.
New Multi-Signature Wallet for Improved Security: Atlas 2.0 provides a coin agnostic (support of 180 plus alt-coins), multi-signature, read-only wallet with cold storage.
Immediately following the Atlas 2.0 public launch, Atlas ATS will be adding additional alt coins over the next few weeks, and working to expedite payment services and banking services to create more options for funding trading accounts.
About Atlas ATS
Atlas is dedicated to providing a secure, state-of-the-art technology exchange platform for transacting digital currency. Atlas is driven to be an industry leader in operating a trading venue and providing innovative products and services for the benefit of the global trading community. The company believes that competition from technology-driven markets increases overall market volumes and improves performance, providing benefits to all participants.
submitted by bitcoinbravo to BitcoinMarkets [link] [comments]

Atlas ATS Launches ‘Atlas 2.0’ Exchange Platform

Just received this in my inbox:
Atlas ATS is pleased to announce the launch of ‘Atlas 2.0’ exchange platform now supporting trading in alt coins, options for digital currency as well as an array of advanced native order types for FIX API clients. New York, NY March 22, 2014
New York based Atlas ATS Inc. has announced the launch of ‘Atlas 2.0’ on both its Hong Kong and North America based digital currency exchanges. The new platform provides trading for major alternative digital currencies, derivative products, a new multi-signature transaction wallet and a larger selection for advanced order types for clients using the FIX interface.
Atlas provides the digital-currency space with a Wall Street grade exchange platform deployed on a global, secure, low latency private network managed by Perseus Telecom.
Atlas ATS is making this preview available to existing clients ahead of the public announcement, and as a show of gratitude for support and loyalty, Atlas ATS is awarding a $10 credit to each client for the first 100 clients to place a trade in options or any of the newly available alt coins. The credit is limited to $10 per user.
All open orders on the system are being cancelled for the upgrade of the platform. Clients will need to enter new orders once the system upgrade is completed.
The following features are available immediately on newest release of Atlas 2.0
Major Alt Coins such as litecoin and namecoin:
Atlas ATS now supports three major alt coins providing more products to trade.
Digital Currency Options for bitcoin and litecoin:
Atlas ATS presently offers two types of options contracts 'Calls' and 'Puts', which confer upon the owner the right to buy and sell, respectively, the underlying crypto-currency at a set 'strike' price on a given 'expiration' date.
Fees on options trades follow the same add/remove (A.K.A: maketaker) model. The rebate earned when adding liquidity is 0.1% and the fee for removing liquidity is 0.3%.
Advanced Order Types Available via FIX API:
Atlas 2.0 now supports trailing stops, stop limit, market, reserves, discretionary, and mid-point peg orders. Additional order types will be made available to website and Web API users in the in the next major platform upgrade.
New Multi-Signature Wallet for Improved Security:
Atlas 2.0 provides a coin agnostic (support of 180 plus alt-coins), multi-signature, read-only wallet with cold storage.
Immediately following the Atlas 2.0 public launch, Atlas ATS will be adding additional alt coins over the next few weeks, and working to expedite payment services and banking services to create more options for funding trading accounts.
About Atlas ATS
Atlas is dedicated to providing a secure, state-of-the-art technology exchange platform for transacting digital currency. Atlas is driven to be an industry leader in operating a trading venue and providing innovative products and services for the benefit of the global trading community. The company believes that competition from technology-driven markets increases overall market volumes and improves performance, providing benefits to all participants.
submitted by vacantmentality to Bitcoin [link] [comments]

Bitsquare will support UASF Bitcoin not BitMainCoin

Today Bitmain release a blog post about their plans how to deal with a UASF fork. Here is another good summary of Jimmay Song: https://medium.com/@jimmysong/examining-bitmains-press-release-6b47b0646f15
This announcement of Bitmain is great news for Bitcoin as it removes a lot of uncertainty and give a lot of support for the UASF side. So Bitmain has become the biggest supporters for UASF by making it easier for those who would have preferred a more cautious and conservative approach (supporters of BIP149 like me) to get a more clear position.
Why? Because the hard-fork which will very likely happen and the included features like 8 MB blocks (or even unlimited block size) as well as the heavily Bitcoin Unlimited influenced road map is a very drastic divergence from the current version of Bitcoin. Not to talk about the unhealthy influence of a monopolistic ASIC and mining company who have proofed many times how damaging they are for Bitcoin (ASICBOOST, Antbleed, empty blocks, blocking SegWit,...).
As it is a hard fork it is also much more clear which of both coins (if both should survive) will be considered the real Bitcoin and which one the Altcoin. Theoretically the unchanged Bitcoin chain might be a valid alternative as well (and the real Bitcoin), but it can be assumed it will not get sufficient support to survive and would be vulnerable to the wipe-out risk as well as replay attacks.
So that reduces the choices to 2 options: - Bitmain Coin (Hardfork with 8MB blocks and BU road map) - UASF Bitcoin (original Bitcoin with enforced SegWit activation)
Should be an easy choice for most readers. SegWit itself has an overwhelming support. Only the way and strategy how to activate it was not supported so widely. That is now out of question as not supporting UASF means to support Bitmain. You cannot be neutral or passive.
There is another important factor. The hard fork will require software updates much more extensive than the UASF version bit change. Beside risks, that will mean that all agnostic, neutral and passive users or companies will likely go with UASF as he least disruptive, expensive and risky option. Same is true for SPV wallets. BitcoinJ which is used for Bitsquare has a check for the block size and will reject the Bitmain chain. So we have less troubles with a potential mess of mixed chains.
Thought there are still many other open problems and risks. We can expect that Bitmain will use its hash power to attack the UASF chain if they feel need for that. This might lead to all kind of unpleasant situations like long confirmation times, unclear amount of confirmations to be considered safe, very volatile tx fees and more. It is also not clear which forms of attacks can occur and how to protect users from those (e.g. Bitmain could silently mine on UASF and then make huge re-orgs, invalidating a lot of blocks and if the Fiat/Altcoin side has been settled it would lead to a BTC buyer who has lost his BTC. For an exchange that means undefined and uncontrollable risks (also on the legal side). Beside the risks there would be likely a huge effort for support and arbitration which would kick us back with our road map.
For all those reasons we need to halt trading on Bitsquare by revoking the 2 arbitrator nodes (both are run by me). Users cannot take an offer or create an offer if there is no arbitrator available.
But no worry we have an exit strategy!
With the next release we will support multiple base currencies. So the user can choose which base currency or market he or she wants to use. Currently it is only Bitcoin, then it will be Bitcoin, Litecoin and Doge. Dash is planned as well but requires more effort. Namecoin still has not P2SH but will added as soon that is implemented. All the other interesting coins which are very different to Bitcoin cannot be added soon as it requires a lot of development effort, but it is planned for the future to extend it to those as well. We started with those which caused the least effort and Litecoin has sufficient liquidity and hash power to be considered a realistic alternative.
By using another coin as base currency Bitsquare is not dependent on what is going on the Bitcoin block chain anymore and all the problems which might arise from the fork sceanrios are out of system, similar to the banking system or other altcoins. The selection of Bitcoin will be possible but arbitrator will only start to register once the situation is settled and can be considered safe again. Might be in 1 week, might be in 3 months, who knows...
So people can trade both the UASF Bitcoin and the BitMainCoin against LTC or DOGE in Bitsquare. The traders are responsible for themselves how to deal with any possible risk and problems when sending the Bitcoin. It is just another altcoin and the selected base currency (LTC or DOGE) is the currency which provides the security by utilizing features like MultiSig. Bitsquare does not know anything about the Bitcoin network in such a case.
There is the question how to name those competing chains. I would suggest to keep the ticker BTC for the UASF Bitcoin and use the UASF in brackets as post fix to make it more explicit (e.g. BTC -Bitcoin (UASF). For the Bitmain coin I would suggest either BMC or BUC (Bitcoin Unlimited Coin). Be assured the selection for the ticker BUC has nothing to do with the many bugs the Bitcoin Unlimited devs have produced in the past. ;-)
Ready now to add the UASF prefix to the Bitsquare twitter handle. Thanks Bitmain for making the situation more easy.
submitted by Manfred_Karrer to litecoin [link] [comments]

Share your top 5 Cryptos and why.

I like to follow http://coinmarketcap.com/views/filter-non-mineable-and-premined/ and http://www.coinwarz.com/cryptocurrency/ just kinda for fun. I am really interested, like many, in the long term how cryptos will play out as far as real world adoption, values and use etc. Because I have a small amount I play with, and not much to spare, I've decided to arbitrarily limit my crypto investments to my top 5 favorite coins, so these are them.
I'm curious what your top 5 coins are and why you are excited about them? Also which of my choices suck, and why ;-)
  1. Bitcoin: it's the biggest, most used and most accepted. I think it will continue to be the major player or one of several major coins just because of it's primacy and recognition.
  2. Litecoin: it's the 2nd biggest, 2nd most used and 2nd most accepted ( I think? ) and even though it's market cap pales compared to bitcoin's, it still an order of magnitude above all the other alt coins. It's in based on the 2nd largest market cap and all it has invested in it's acceptance and services.
  3. Dogecoin: I actually don't like several things about this coin. Mostly it's inflation and the fact that I can't see it ever being used in a major way by large scale businesses ( can you image a contract for a multi-million dollar skyscraper paid in a "joke" currency? ). But I can see it fulfilling a niche use, and it does have a lot of "fans" and fun publicity. I hold the least amount of this currency between the 5 coins I hold. I keep it on the list because it's funny and likable, and Im guessing it has more users than litecoin or possibly even bitcoin ( I have no data, it just seems a lot of people hold a little ? )
  4. Darkcoin: This one is a little bit "front runner" with the recent rise in price, but I bought just before that so I'm liking it. I'm interested in this coin because it's innovation in mining algorithm, and it's offering anonymity to end users. Yes, I know other coins could add this, but I see significant resistance to BTC or LTC adding this, as they want to participate in more business / government settings where blockchain transparency -can- be a good thing. Maybe Dark Wallet for bitcoin makes this coin less interesting, but I still like the algorithm and it seems to be gaining services and merchant adoption, so Im still watching and waiting.
  5. Myriadcoin: This is the most recent addition to my top 5. I like the algorithm innovation, using multiple algorithms side by side. Unlike the way vertcoin "fights" what is possible with it's n-factor scrypt, Myraidcoin embraces what is possible in terms of mining hardware. ASICs are welcome and not a huge centralization issue. Another a key difference from vertcoin is that Myriad's ASIC coping mechanism is beneficial to the end user, by making %51 attacks another order of magnitude more difficult, vertcoin's increasing n-factor is great for miners, but I think has very little meaning to end users. This is my underdog vote since it is a tiny market cap but I think it has potential.
PS. I recently sold out of positions in Namecoin, Peercoin, Primecoin and Vertcoin PPS. I suck at grammaspelling, sorry.
submitted by starkast to CryptoCurrency [link] [comments]

Official press release: Telegraf.Money has issued a crypto currency for the DEBIT Coin community

Telegraf.Money, a financial instant messenger with integrated VISA/MasterCard cards, specializing in p2p-credits, money transfers from card to card, announced the release of its own cryptocurrency.
In near future, users wishing to buy a messenger cryptocurrency will be able to take part in the test sale of DEBIT Coin coins — cryptocurrency. Own cryptocurrency will help tighten Messenger users in the process of transactions between them, both financial and commercial.
To earn DEBIT Coin will be in the form of interest on decentralized loans and deposits from embedded cards, cryptocurrency mining, as well as on various services provided by community members.
The released DEBIT Coin tokens are tied to the VISA/MC cards embedded in the messenger, i.e. The holder of crypto-currency will be able to pay it off from his virtual or plastic card. Currently, the conversion rate is set by Telegraf.Money itself, then the coin value will be tied to the weighted average rate on the exchanges trading with the token. Thus, the owners of the tokens will be able to use them for purchases without cashing through the exchange.
Telegraf.Money Messenger is available on Android/iOS/Windows/MAC devices, also in the Web version.
In 3 months it is planning to integrate multi-wallet into the messenger, where participants can store any cryptocurrency (Bitcoin, any altcoins, and all ERC-20 tokens), an exchanger on the Shape Shift platform. Telegraf.Money plans to launch a messenger exchange where participants can exchange crypto-currencies among themselves, and also change them to fiat and electronic money. There are also encrypted text and audio messages, audio and video calls, group conferences, task-organizer — today people often spend their entire day in instant messengers and it is very convenient to plan there all their business with reminders. Using Telegraf.Money it will be possible to communicate, transfer money and make financial transactions with subscribers of other instant messengers: Skype, Facebook Messenger, Telegram.
A total of 1.000.000.000 (one billion) tokens are released, on the Ethereum blockchain compatible with the ERC-20 standard, ie DEBIT Coin will be able to transfer through any E-wallet a wallet that supports this standard. Https://etherscan.io/token/0x577f56a16080787323a8e4a9227c040b1c2017cd
The offer of cryptocurrency will be available to users of the messenger and their partners. The minimum purchase amount of tokens will be $10, the maximum $100.000. The payment will be accepted both through the payment cards integrated into the messenger and by popular electronic payment systems using the exchange partners and the cryptocurrencies BTC, DASH, LTC, ETH and EMC. Participants who took part in the test deposit receive a plastic card free of charge*, also for the first half year the bonus is the withdrawal of cash from the card and purchases without commission.
Each token buyer worth $500 will receive a Free DEBIT Coin Gold — a multi-currency wallet for storing up to 5 keys from the cryptocurrency Bitcoin, Ethereum, Litecoin, Namecoin, Dash. Your wallets will be reliably protected from viruses, malware, and blocking. Multi-proof DEBIT Coin Gold wallet is the safest wallet for your cryptocurrency. It provides you with the best protection, so anyone who is not even familiar with the market can encrypt a person, can reliably protect their crypto assets.
What is DEBIT Coin
Token DEBIT Coin (DBC) is a decentralized cryptocurrency for performing any operations between community members, replenishing VISA/MC cards tied to the Telegraf.Money Messenger, for issuing and receiving short-term loans on the block, creating smart deposits, accepting and sending payments Between users of the messenger. The DEBIT Coin tokens are issued on the Ethereum blockchain contract. Tokens can be used for any purchases from VISA/MC cards, withdrawal of cash, international transfers to anywhere in the world, sell on the exchange, exchange offices.
Distribution of DEBIT Coin tokens
As part of the test sale, the distribution of tokens will take place for a maximum of 29 days, starting July 10, 2017, from 12:00 GMT. 10.000.000 (ten million) tokens, representing 1% of the total emissions, will be distributed according to the schedule below:
1.000.000 (one million) tokens are sold within 3 days, starting July 10 from 12:00 to GMT to July 13 11:59 GMT. The minimum value of the token is set at $0.10
1,000,000 (one million) tokens are sold for 4 days, starting July 13 from 12:00 to GMT on July 16 11:59 GMT. The minimum value of the token is set at $0.15
3.000.000 (three million) tokens are sold within 10 days, starting from July 16 from 12:00 to GMT to 26 July 11:59 GMT. The minimum cost of the token is $0.20
5.000.000 (five million) tokens are sold within 15 days, starting July 26 from 12:00 to GMT to August 10 11:59 GMT. The minimum value of the token is $0.25
At the end of each period mentioned above, a certain number of DEBIT Coin tokens will be distributed proportionally among all buyers, depending on the total amount of funds contributed (in USD on the day of allocation) made during these periods, as follows:
EXAMPLE: 1. 100 DEBIT Coin tokens are available for sale during the period. 2.Alex contributes 20 dollars, and Maria during the period makes 5 dollars. 3. A total of 25 dollars were paid for 100 DEBIT Coin tokens for this period, 1 DEBIT Coin token will be distributed for every $0.25. So Alex gets 80 DEBIT Coin tokens, and Maria gets 20 DEBIT Coin tokens.
In the event that a consignment of coins is sold before the minimum set period, this lot is added the number of coins from the next batch to the lower value, until the deadline ends, and so on.
submitted by socialcloudbank to u/socialcloudbank [link] [comments]

Atlas ATS Launches Atlas 2.0 and now allows litecoin trading.

Atlas ATS is pleased to announce the launch of ‘Atlas 2.0’ exchange platform now supporting trading in alt coins, options for digital currency as well as an array of advanced native order types for FIX API clients. New York, NY March 22, 2014 New York based Atlas ATS Inc. has announced the launch of ‘Atlas 2.0’ on both its Hong Kong and North America based digital currency exchanges.
The new platform provides trading for major alternative digital currencies, derivative products, a new multi-signature transaction wallet and a larger selection for advanced order types for clients using the FIX interface.
Atlas provides the digital-currency space with a Wall Street grade exchange platform deployed on a global, secure, low latency private network managed by Perseus Telecom.
Atlas ATS is making this preview available to existing clients ahead of the public announcement, and as a show of gratitude for support and loyalty, Atlas ATS is awarding a $10 credit to each client for the first 100 clients to place a trade in options or any of the newly available alt coins. The credit is limited to $10 per user. All open orders on the system are being cancelled for the upgrade of the platform. Clients will need to enter new orders once the system upgrade is completed.
The following features are available immediately on newest release of Atlas 2.0
Major Alt Coins such as litecoin and namecoin: Atlas ATS now supports three major alt coins providing more products to trade. Digital Currency Options for bitcoin and litecoin:
Atlas ATS presently offers two types of options contracts 'Calls' and 'Puts', which confer upon the owner the right to buy and sell, respectively, the underlying crypto-currency at a set 'strike' price on a given 'expiration' date. Fees on options trades follow the same add/remove (A.K.A: maketaker) model. The rebate earned when adding liquidity is 0.1% and the fee for removing liquidity is 0.3%.
Advanced Order Types Available via FIX API: Atlas 2.0 now supports trailing stops, stop limit, market, reserves, discretionary, and mid-point peg orders. Additional order types will be made available to website and Web API users in the in the next major platform upgrade. New Multi-Signature Wallet for Improved Security:
Atlas 2.0 provides a coin agnostic (support of 180 plus alt-coins), multi-signature, read-only wallet with cold storage. Immediately following the Atlas 2.0 public launch, Atlas ATS will be adding additional alt coins over the next few weeks, and working to expedite payment services and banking services to create more options for funding trading accounts. About Atlas ATS
Atlas is dedicated to providing a secure, state-of-the-art technology exchange platform for transacting digital currency. Atlas is driven to be an industry leader in operating a trading venue and providing innovative products and services for the benefit of the global trading community. The company believes that competition from technology-driven markets increases overall market volumes and improves performance, providing benefits to all participants.
[EDIT - THEY HAVEN'T MADE THE PUBLIC ANNOUNCEMENT YET, THIS IS AN EMAIL SENT TO CURRENT EXCHANGE USERS]
submitted by karljt to litecoin [link] [comments]

Terrawallet.com - Online Bitcoin Wallet - For sale!

Check out the details here: www.terrawallet.com
A complete online web-wallet for sale. Ready to take on Coinbase/Paypal or just run locally as a convenient front end to bitcoin/litecoin/whatevercoin-d.
Php, 2Factor Authentication, InstaCodes, Send/receive with only an email, No passwords stored, Cold-Storage system keeps coins offline, powerful API, metrics, multi-currency, multi-language, Transaction History, user tagging, user labels, mobile site, great design/interface, iOS friendly, fast, awesome.
It's a one-time-deal, I'm looking to transfer the entire site to only one person. Functionally it works great, still small bugs here and there. It's an unfinished project I worked on a few months ago. I'm a stranger to you so you need to check the code yourself once you get it. A digital fixer-upper. I can answer basic questions, but you should be a competent programmer or able to hire one.
It will work for Bitcoin, Litecoin, Terracoin, Namecoin, and probably all the Alt-Coins.
I'm selling it to raise capital for a new project- non bitcoin web wallet related.
Check it out at:
demo.terrawallet.com User: [email protected] Pass: 12345678
I'll try to reset the server daily incase it goes down or bitcoind freezes. It works, but runs on bitcoin-testnet currently. The server has been off for a little while so somethings like 'Metrics" and transaction history will be inaccurate/broken.
Make me an offer, preferably by email: [email protected]
Bitcointalk Thread: https://bitcointalk.org/index.php?topic=408618.0
submitted by dennisonb to Bitcoin [link] [comments]

The case for Ethereum: general-purpose vs special-purpose blockchains

Bitcoin and Alt-coins are Special-Purpose Chains

What's the difference between a general-purpose blockchain and a special-purpose blockchain? Let's start with bitcoin, the original special-purpose chain for computing and comparing sha256 hashes. Bitcoin users started the chain by mining on generic x86 (general-purpose) CPUs. But because sha256 hashing is a specific computation, btc mining is now dominated by Application Specific Integrated Circuit (ASIC) hardware. Litecoin is another special-purpose chain, except it computes scrypt hashes (some manufacturers are already started shipping scrypt ASIC miners). There's also a Primecoin for computing prime numbers, and a bunch of other special-purpose chains commonly known as alt-coins.

Special-Purpose Chains: Backend and User Perspective

How does it work when we want to use the services provided by separate special-purpose chains? Let's look at the granddaddy of alt-coins, namecoin, which like bitcoin uses sha256 hashes. Additionally, it also provides some standard namecoin script opcodes for associating plaintext pseudonyms with unique addresses (public/private keypairs), so namecoin addresses can register and "own" domain names or identities/handles. Let's say you want to use bitcoins to purchase a namecoin .bit domain that its owner is selling. What does it take to get these two special-purpose blockchains (bitcoin and namecoin) to interact with each other? The immediate option (and the only one available today) is a centralized service running a web server in front of both p2p daemons (as nodes of their respective networks, bitcoind and namecoind). That centralized service is a BTC/NMC exchange, and maybe it has an interface allowing you to register "dot-bit" names (otherwise you'd have to open up two separate wallets - one for each coin). The centralized exchange is a trusted third-party that holds in escrow the BTC and NMC of each user (whose coins could be stolen by a dishonest exchange operator).

A General-Purpose Chain: Backend and User Perspective

So how is using a unified general-purpose chain different from a special-purpose one? On the Ethereum general-purpose chain, each service is provided by some "DApp" (distributed app "hosted" by all ethereum miners). A DApp is an interface to a specific "contract", running at some address on the blockchain. For instance, to register a name, you would open the EtherNames DApp in the ethereum client's built-in browser, type in the name you want to register, and "send" the registration as a transaction with data. There's no need to copy and paste addresses since the Ethereum client provides hooks for seamless wallet access inside every DApp. The registration transaction is sent to the EtherName DApp's contract address, which is running some variant of the namecoin contract code. A specific contract gets initialized at a particular address by some untrusted third-party individual/entity (the DApp author). The contract author is not trusted, all the author does is upload the contract code and pay the initial "gas" fee. The contract code is independently executed and verified by each ethereum miner as part of a single atomic transaction. Atomicity means that the ledger database updates are all-or-nothing, so no user has to worry about the risk of having to pay first because any and all transactions needed to fulfill a contract are guaranteed to occur within the same block, or the contract is broken and won't run at all. Think of Ethereum contracts as interconnected threads in a big web of complex multi-sig transactions of Ethers and contract-specific sub-currencies, all of which run atop the same unified blockchain.

Special-Purpose Chains: Developer Perspective

From the developer's perspective, operating a service that uses two separate special-purpose chains requires maintaining both blockchains (upgrading separate software, providing enough processing power, disk space, and bandwidth for each chain). It also requires maintaining user accounts, as well as wallets on two separate chains (multiplied by the number of users). Hosting a server is needed to run both the namecoin daemon and bitcoin daemon (unless outsourced to a centralized API). The web developer will need to maintain a web server and app stack such as LAMP (Linux Apache Mysql Php) or MEAN (Mongodb Express Angular Node). Finally, the service must hold the users' deposits of bitcoins and namecoins in secure hot wallets and offline cold storage, keeping them safe from hacker thieves. Altogether, every service operator needs to independently maintain a separate full-stack system, which can be a herculean effort.

A General-Purpose Chain: Developer Perspective

A service operating on Ethereum has a DApp backend hosted right on the blockchain, maintained by miners (who earn gas fees). A developer simply authors the contract code and pays the gas fee to initialize it on the blockchain, which is much easier than forking an alt-coin to start yet another genesis block. DApp's do not need a separate API for access and integration by other developers; authors just name functions inside a contract, directly exposing an API (with optional fee-per-use) that enables message calls from any other Ethereum DApp. Also, DApp authors do not need to maintain user accounts, since the users interact with the DApp directly on the blockchain through their ethereum addresses. Nor do DApp authors need to maintain user wallets since private keys stay private in a decentralized system. Unlike the current convention where coins are deposited to a wallet address controlled by some third-party, in a truly decentralized system private keys are only used for signing transactions as inputs to contracts.

Meta-Coins as Feature Specs

Meta-coin protocol extensions like Colored Coins, MasterCoin, and CounterParty work by organizing a group of users who agree to interpret bitcoin transaction data according to some metadata specification, supplementing the base rules of the bitcoin protocol. For example, MasterCoin specifies creating multisig 1-of-n bitcoin transactions and encoding data in the n-minus-1 unused public keys. In the meta-coin approach, each feature or "contract" is specified in the meta-protocol. Two MasterCoin features are registration of a data stream and the creation of a sub-currency, these are baked into the specification and reference client alongside the other features. While you can register new data streams and sub-currencies, if you want to create a new contract that is some kind of a hybrid between a data stream and a sub-currency, such as a call/put option or a Contract For Difference (CFD), it would need to be implemented directly in the reference client, and unlocked as a feature at some future block number. Implementing new features in a meta-coin protocol that doesn't have a scripting language requires specifying them directly in the protocol and must be effected at the organizational level.

Scripts and DApps vs Forks and Features

Embedding a scripting language into a crypto-currency gives it the same kind of extensibility that gamers crave in video games. Scripts empower players to create "mods" and customize their game-world with new levels, characters, and maps. In the crypto-currency world, scripting allows for the extension of a plethora of decentralized features such as trading, lotteries, and ecommerce, all atop a shared, compatible platform. Bitcoin has a scripting language, but with severe limitations including: lack of loops, binary state variables limited to spent or unspent transaction outputs, and blockchain blindness. The difficulty of using bitcoin script has in effect given rise to a landscape of competing alt-coins and meta-coins with incompatible protocols. The preferable route, and vision of Ethereum, is to foster a fully-featured ecosystem of compatible, interacting DApps. Providing a Turing-complete scripting language on a general-purpose blockchain with message calls between contracts stimulates adoption of Ethereum as a shared decentralized Operating System and kernel.

Decentralized House, Decentralized Dealer

Consider the concept of a decentralized lottery. In a semi-decentralized lottery that is merely provably fair, although the operator is not capable of altering any particular dice outcome, he can simply shut down the service immediately after a big winning bet comes in, scamming the user of his money and winnings. But in a fully decentralized lottery, the mechanism for distributing the winnings is written into the contract itself (open-source and audited by users), so no central operator is needed. While writing such a contract in bitcoin script is theoretically possible (see pages 12-15), to my knowledge none has been implemented. In practice, it is easier to create a LottoCoin as a special-purpose alt-chain. In contrast, writing a script on the Ethereum platform for a fully decentralized lottery is not only feasible but relatively easy.

Conclusion

The limitations and difficulties of using bitcoin script to implement decentralized features natively on the bitcoin blockchain has resulted in a fragmented ecosystem of incompatible, competing alt-chains and meta-coins. While it is theoretically possible to use bitcoin script for complex contracts like cross-chain atomic trading, practical implementations of such features have yet to be achieved (to my knowledge). On the other hand, Ethereum focuses on providing an easy-to-use scripting language for implementing advanced contracts on a general-purpose blockchain. Ethereum's extensible platform enables the realization of advanced decentralized features that previously were inaccessible.
submitted by martinBrown1984 to ethereum [link] [comments]

Guia de Segurança Básico para Bitcoin

Guia de Segurança Básico para Bitcoin
Olá, Este post é para lhe dar uma rápida introdução em segurança de Bitcoin. Enquanto ninguém pode garantir a você 100% de segurança, eu espero mitigar alguns dos problemas que você pode ter. Este é um “20% de esforço para conseguir 80% de segurança”.
Em primeiro lugar, você tem de determinar quanto dinheiro você quer investir em Bitcoin e quanto esforço você está disposto a colocar nisso. Se você está feliz em investir uns poucos dólares e não se importa em perdê-los, esta é uma abordagem a se adotar. Para todos os outros, vamos começar.
Força da Senha
Muitas vezes o quão seguro seu dinheiro está é determinado pela força de sua senha. Uma vez que no pior cenário nós estamos falando sobre alguém tentando invadir sua carteira, senhas online casuais são muito fracas. Senhas com menos de 10 caracteres são muito fracas. Palavras comuns ou frases são muito fracas. Adicionar um número ao final da senha é muito fraco.
Além disso, você pode considerar sua senha muito fraca se você:
Se você realmente quer uma senha forte:
Segurança da Carteira
Agora estamos chegando ao cerne das coisas. Há um grande número de carteiras [http://bitcoin.org/en/choose-your-wallet] disponíveis para guardar seus tão suados bitcoins. Se você tem uma quantia decente de moedas para guardar, você deve buscar softwares de carteiras - BitcoinQT, MultiBit, Armory ou Electrum. Eles são alguns dos melhores lugares para guardar seu dinheiro de forma segurança (uma vez que seu computador seja seguro também). Escolha um que você ache que melhor se adeque a vocvocê, instale-o e criptografe o arquivo de sua carteira com uma senha forte. Você deve fazer back-up de seu arquivo (a localização do arquivo é diferente para diferentes clientes, então você deve fazer alguma pesquisa para descobrir como achar aquele arquivo). Faça back-up em um CD, um USB seguro ou algo do tipo. O guarde em um lugar seguro. Se você perder esse arquivo, você perde seu dinheiro.
Uma palavra rápida sobre carteiras determinísticas [https://en.bitcoin.it/wiki/Deterministic_wallet]. Electrum e Armory permitem que você crie carteira de um “seed” (semente). Se você usar o mesmo “seed” depois, você pode recriar sua carteira em outras máquinas. Com determinadas carteiras, você só precisa manter o “seed” seguro para acessar seu dinheiro. Em comparação, nas carteiras tradicionais do BitcoinQT, cada endereço que você usar é randômico, o que significa que depois que você enviar entre 50 ou 100 transações de saída seus backups podem ficar obsoletos. Sempre mantenha back-up atualizado de tal arquivo carteira se possível.
Ok, às vezes você precisa ter seus Bitcoins quando deixa seu computador. Nesse caso, você deve procurar por carteiras online ou via mobile. Um exemplo para ambos é o Blockchain.info, mas existem outros para serem escolhidos. Uma regra de ouro para essas carteiras é não guardar nelas mais dinheiro do que você esteja disposto a perder. Elas são melhores usadas como uma forma conveniente de ter acesso ao seu dinheiro, mas não para guardar suas reservas.
O que ter em mente quando for usar carteiras online:
Armazenamento Frio (Cold Storage)
Às vezes você quer guardar seus bitcoins por um longo período de tempo em um lugar seguro. Isso é chamado de “cold storage”. Existem umas poucas maneiras de se fazer isso.
Em primeiro lugar, carteiras de papel [https://www.bitaddress.org/]. Eles são legais para dar pequenas quantias de bitcoin como presentes, mas também para armazenamento a longo termo se for usado propriamente. O que você precisa fazer é gerar e imprimi-los offline. Você pode salvar o link da página e a abrir offline, por exemplo. Se você for realmente paranoico, você os pode salvar como mídias de apenas leitura e os acessar de um computador diferente. Para armazenamentos realmente longos, use papeis especiais para arquivos.
Outra abordagem a se tomar é usar computadores separados para armazenar seu dinheiro que ficam a maior parte do tempo offline. Você pode facilmente comprar um velho laptop, formatá-lo, instalar nele o sistema operacional Linux e um cliente Bitcoin. Gere um endereço nessa máquina e envie seu dinheiro para ela através da sua carteira principal. Dependendo de quão paranoico você seja você pode conectar esse computador à internet depois para sincronizar suas informações com a rede Bitcoin e então desligue e deixe-o de lado em algum lugar seguro até que você precise dele.
Carteira na memória (Brain Wallets) Não. Essas não são para você. A não ser que você seja um programador em segurança consciente, essas não são para você. (Este tipo de carteira consiste em se guardar a senha da carteira na memória, logo caso a pessoa esqueça, morra ou fique incapacitada mentalmente, o dinheiro se perde)
Diversificando Manter todos os ovos em um só cesto nunca é algo bom. Você deve buscar diversificar alguns de seus ativos em Bitcoin para o caso de um de seus métodos de armazenamento falharem. Algumas formas para você diversificar:
Como não diversificar:
Aceitando pagamentos com segurança
Nós tratamos formas seguras de se armazenar dinheiro, agora uma nota rápida sobre pagamentos com bitcoins e sua segurança.
Em primeiro lugar, quando você estiver fazendo uma transação, pague suas taxas. Transações sem taxas podem levar uma eternidade para se propagarem, confirmarem e finalizarem. Isso pode gerar um monte de estresse, então, paga suas taxas.
Em segundo lugar, quando aceitar pagamentos altos em Bitcoin (digamos que você, de repente, deseje vender uma barra de ouro em Bitcoins), espere a confirmação de pelo menos uma dessas transações. Seis é o melhor, mas tendo pelo menos uma confirmação é muito melhor do que não ter nenhuma. Esse é a regra de ouro para os paranoicos (Eu não faria isso para transações casuais), mas talvez isso irá protegê-lo se você estiver lidando com pessoas suspeitas.
Resumindo… Isso deve servir para o básico. Se você quiser ler mais sobre segurança Bitcoin no geral, aqui está minha tese de mestrado no assunto[https://bitcointalk.org/index.php?topic=88149.0]. Um monte de perguntas sobre Bitcoin e segurança podem também ser respondidas no Bitcoin StackExchange [http://bitcoin.stackexchange.com/] – faça questão de dar uma olhada nele. Comentários e sugestões são bem vindos.
Traduzido por: Sarah Alexandre Original em: http://www.reddit.com/Bitcoin/comments/1pxy4w/basic_bitcoin_security_guide/
submitted by allex2501 to BrasilBitcoin [link] [comments]

[ANN] Pure-Central - P2P multi currencies Lending & Trading

Good day all,
My name is James Donavan, one of the developers of Pure-Central.com
Today we please to announce the opening of Pure-Central, the first multi currency P2P trading and lending global network.
https://www.pure-central.com
Today you can, Invest, Trade or Get a Loan, with the following currency:
Bitcoin (BTC) Litecoin (LTC) Dogecoin (DOGE/XDG) Namecoin (NMC) TheWLD (WLD) Peercoin (PPC) Darkcoin (DRK) AuroraCoin (AUR)
And more are coming soon.
What are the features : Full P2P trading platform for coins, Invest your coins, Propose loan to borrower, No fee for investor, The lowest fee on the market for borrower 0.75%, Full ID verification for borrower, 3 Types of Loan available, The site, the wallets, our server are fully encrypted and protected and back up are made every 10 mins, Receive and send coin very fast with the Payment gateway system, get your coin confirmation in seconds
The P2P network was in need of new, fast and reliable payment gateway and micro-credit for multiple currency. This way you can trade your coins for other currency, make profit, and grow your wallet.
More features are coming very soon.
You have ideas, or suggestion for improvement ? contact me or fill the contact form on our website.
Kind Regards, James Donavan
Pure-Central Teams
submitted by jamesdo1 to Bitcoin [link] [comments]

How to get a Litecoin Wallet by TheCoinCave What is Namecoin BITCOIN's First Fork - YouTube ES Faucets Win Free Crypto Coins Multi Faucet Pay on Coinbase or Crypto Wallets Namecoin Mining  What is Namecoin?  Cryptocurrency  By DailyDot Best Litecoin (LTC) Cryptocurrency Wallet 2017

Exodus is one of my favourite free wallets. It is a multi-currency desktop wallet which supports 8 cryptocurrencies (including Litecoin). It has a very interactive user interface and is backed by an active development team lead by JP Richardson and Daniel Castagnoli.. Most importantly, I like that Exodus’s ease of use isn’t compromised by a lack of security. KeepKey secures Bitcoin, Bitcoin cash, Litecoin, Ethereum, Dogecoin, Dash, and Namecoin. They claim to be virus or malware proof, and assets are secured from thieves and hackers. KeepKey is a Bitcoin hardware wallet with advanced security against virtual and physical theft. Now, a lower price tag means more users can give it a try. In addition to Bitcoin and Bitcoin cash, the KeepKey wallet ... Laut ihrer Website unterstützt KeepKey nur Bitcoin, Litecoin, Dogecoin, Namecoin, Testnet, Ethereum und Dash. Keepkey jetzt kaufen. Beste Litecoin Wallet: Online Wallets. Online Wallets sind Wallets, die immer online sind. Sie haben Vorteile – sie sind über das Internet leicht zugänglich. Aber das ist auch ein großer Nachteil – denn sie können gehackt werden. Es gibt im Wesentlichen ... 2019-09-02T20:24:50Z Zetacoin (ZET) will be removed on or after October 15, 2019. Please withdraw your coins. Exodus is a multi-currency desktop wallet that supports Litecoin, Bitcoin, Ethereum and other cryptos. It is backed by an active development team lead by JP Richardson and Daniel Castagnoli. I like the fact that Exodus’s ease of use isn’t compromised by a lack of security. You will get a 12-word seed key. The seed key would be needed if you ...

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How to get a Litecoin Wallet by TheCoinCave

As the world is moving towards the global part of the world the world has to know the concept of the cryptocurrency as namecoin, bitcoin, litecoin, laxmicoin, etc. Important concepts are held at ... This video was Created to answer some of your questions about grouping your bitcoin wallet transactions into separate buckets. These are known as sub-wallets... Best Litecoin Wallet 2017 Coinbase wallet is also a bitcoin wallet app for your android or IOS device, this bitcoin wallet app is very easy to use and makes bankless banking very simple. Make sure ... ES Faucets is a Multi-Crypto faucet in which you decide how often to claim. Most faucets will allow you to claim once in a while. They are different, with them, you may decide how often you would ... This is a simple guide to installing a Litecoin wallet. We advise that all users back up and encrypt their wallets. Find us at www.thecoincave.com

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