* «لايتكوين» Litecoin. عام الإنشاء: 2011، القيمة السوقية: 353.3 مليون دولار، السعر: 13.53 دولار. قدمت عملة اللايتكوين نفسها باعتبارها «العملة الفضية مقارنة بعملة البيتكوين الذهبية». يتم تأكيد المعاملات التي تتم باللايتكوين بشكل أسرع من تلك التي تتم باستخدام البيتكوين. تؤدي طريقة استخراجها إلى تلاشي بعض مزاياها بالنسبة للمستخرجين الذين يمتلكون مكونات كومبيوتر متخصصة.
أطلقت في عام 2015، إثريوم هو منصة البرمجيات اللامركزية التي يمكن من خلالها خلق بلوكشين، توكن، العقود الذكية، و التطبيقات الموزعة (ĐApps) ليتم بناؤها وتشغيلها دون أي توقف أو احتيال أو سيطرة أو تدخل من طرف ثالث. خلال عام 2014، أطلقت إثريوم حملة ما قبل البيع للأثير التي تلقت استجابة هائلة من المستثمرين و المطورين. يتم تشغيل التطبيقات على شبكة الإثريوم على رمزها التشفيري في المنصة. الأثير هو مثل وسيلة للتحرك في جميع أنحاء منصة إيثريوم، وسعى من قبل معظم المطورين تبحث لتطوير وتشغيل التطبيقات داخل إيثريوم. بعد الهجوم على داو DAO في عام 2016، تم تقسيم إثريوم إلى إثريوم (ETH) و إثريوم كلاسيك (ETC). إيثريوم (ETH) لديها قيمة سوقية تقدر ب بملايير الدولارات، و هي العملة الثانية بعد باليتكوين بين جميع Cryptocurrencies.
Hey to all. Since around 2 months, I am with 99bitcoins reading and getting info and I am very happy here, thanks for a good site. For my bad luck I did not check here for a review of coinbase, I would have save a lot of worthless time. To tell the truth, I hope there is a internet god out there and shut them down. I did not know about their support in US, but as I read the first reviews here, it seems they make themselves a pretty bad place there too. I am located in the D.R.,… Read more »
Ethereum can also be used to build Decentralized Autonomous Organizations (DAO). A DAO is fully autonomous, decentralized organization with no single leader. DAO’s are run by programming code, on a collection of smart contracts written on the Ethereum blockchain. The code is designed to replace the rules and structure of a traditional organization, eliminating the need for people and centralized control. A DAO is owned by everyone who purchases tokens, but instead of each token equating to equity shares & ownership, tokens act as contributions that give people voting rights.

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NO WAY. How do some many people trust Coinbase with their money When their website’s software is full of faulty programs that they won’t or can’t fix. IE, I tried to add a new debit card to my account. I gave them my cards info and was told to check my account for two small charges made by coinbase and enter the amounts in a designated page. Both amounts were over $3.00, but the verification page only allowed me to submit amounts under $2.00. I was never able to add another card to my account. For me, no big deal,… Read more »
Ethereum can also be used to build Decentralized Autonomous Organizations (DAO). A DAO is fully autonomous, decentralized organization with no single leader. DAO’s are run by programming code, on a collection of smart contracts written on the Ethereum blockchain. The code is designed to replace the rules and structure of a traditional organization, eliminating the need for people and centralized control. A DAO is owned by everyone who purchases tokens, but instead of each token equating to equity shares & ownership, tokens act as contributions that give people voting rights.

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If you want to trade in digital currencies, you are going to need a platform on which to trade them, and an intermediary to communicate with the network. Coinbase is a global digital asset exchange company (GDAX), providing a venue to buy and sell digital currencies, as well as send information about those transactions out to the blockchain network to verify those transactions. Coinbase serves as a wallet, too, where the digital currencies can be stored. The application operates exchanges of Bitcoin, Ethereum, Bitcoin Cash, and Litecoin, as well as other digital assets with fiat currencies in 32 countries, and Bitcoin transactions in many more countries. According to its website, Coinbase has served over 10 million customers and facilitated the exchange of more than $50 billion worth of digital currency.

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This dramatic volatility attracted global attention with the mainstream media running near-daily reports on the price of Ether. The publicity generated has been a major boon for the ecosystem, attracting thousands of new developers and business ventures alike. In 2018 the amount raised through Ethereum-enabled ICOs reached almost $8bn, increasing from just $90m in 2016. While the price of Ethereum has faced extreme volatility over the years, it is this volatility which has driven interest. After every boom and bust cycle, Ethereum comes out the other side with a fundamentally stronger platform and a broader developer community backing it. These fundamental improvements would suggest a positive long-term outlook on the price of Ethereum.


Both blockchains have the same features and are identical in every way up to a certain block where the hard-fork was implemented. This means that everything that happened on Ethereum up until the hard-fork is still valid on the Ethereum Classic Blockchain. From the block where the hard fork or change in code was executed onwards, the two blockchains act individually.

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While another less aggressive soft fork solution was put forth, the Ethereum community and its founders were placed in a perilous position. If they didn’t retrieve the stolen investor money, confidence in Ethereum could be lost. On the other hand, recovering investor money required actions that went against the core ideas of decentralization and set a dangerous precedent. 

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The platform stores 98% of customers funds offline to ensure the security of the cryptocurrency assets you purchase and store within Coinbase. On their website, Coinbase assures customers that "sensitive data that would normally reside on our servers is disconnected entirely from the internet." Data is then encrypted, and transferred to USB drives and paper backups, and distributed in safe deposit boxes vaults all over the world. 
Welcome to the 34th Coin Report. In today’s report, I will be assessing the fundamental and technical strengths and weaknesses of Constellation. This will be comprised of an analysis of a number of significant metrics, an evaluation of the project’s community and development and an overview of its price-history. The report will conclude with a grading out of 10. Constellation launched in 2017 with a private sale that raised $35.2mn in exchange for 756mn DAG – the utility token for the Constellation Network. This amounted to 18.9% of the original 4,000,000,000 DAG maximum supply; however, as a gesture of good will, the founders burned the 288mn tokens originally allocated to them, leaving the maximum supply at 3.71bn DAG. The team raised no further funds following this. DAG was created as an ERC-20 token for accessibility purposes, but, upon the launch of the Mainnet in October, these tokens will be swapped for the native Directed Acyclic Graph tokens; hence the ticker, DAG.
For those of you who have not been paying attention to one of the biggest trends in investing and tech, cryptocurrencies are digital currencies using encryption techniques that regulate the generation of currency and verify the transfer of funds, operating independently of a central bank. Units of currency are created through a process referred to as mining.
Ethereum addresses are composed of the prefix "0x", a common identifier for hexadecimal, concatenated with the rightmost 20 bytes of the Keccak-256 hash (big endian) of the ECDSA public key (the curve used is the so called secp256k1, the same as Bitcoin). In hexadecimal, 2 digits represents a byte, meaning addresses contain 40 hexadecimal digits. An example of an Ethereum address is 0xb794F5eA0ba39494cE839613fffBA74279579268. Contract addresses are in the same format, however they are determined by sender and creation transaction nonce.[34] User accounts are indistinguishable from contract accounts given only an address for each and no blockchain data. Any valid Keccak-256 hash put into the described format is valid, even if it does not correspond to an account with a private key or a contract. This is unlike Bitcoin, which uses base58check to ensure that addresses are properly typed.
If you do have this much money tied up in Bitcoin, though, you may want a more secure space to store it. If this is the case, Coinbase offers a Coinbase vault, which has time-delayed withdrawals (giving you 48 hours to cancel a withdrawal) and the option of multiple approvers, increasing security by ensuring that all withdrawals are approved by multiple people. They also offer a multisig vault, which is basically an even more involved and more secure vault, requiring multiple keys to unlock. 

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Ethereum was officially with an unusually long list of founders. Anthony Di Iorio wrote "Ethereum was founded by Vitalik Buterin, Myself, Charles Hoskinson, Mihai Alisie, & Amir Chetrit (the initial 5) in December 2013. Joseph Lubin, Gavin Wood, & Jeffrey Wilke were added in early 2014 as founders." Formal development of the Ethereum software project began in early 2014 through a Swiss company, Ethereum Switzerland GmbH (EthSuisse).[13][14] The basic idea of putting executable smart contracts in the blockchain needed to be specified before the software could be implemented; this work was done by Gavin Wood, then chief technology officer, in the Ethereum Yellow Paper that specified the Ethereum Virtual Machine.[15] Subsequently, a Swiss non-profit foundation, the Ethereum Foundation (Stiftung Ethereum), was created as well. Development was funded by an online public crowdsale during July–August 2014, with the participants buying the Ethereum value token (ether) with another digital currency, bitcoin.

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Ethereum's blockchain uses Merkle trees, for security reasons, to improve scalability, and to optimize transaction hashing.[60] As with any Merkle tree implementation, it allows for storage savings, set membership proofs (called "Merkle proofs"), and light client synchronization. The Ethereum network has at times faced congestion problems, for example, congestion occurred during late 2017 in relation to Cryptokitties.[61] 

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