Bitcoin block chain
Publish: 2021-04-19 05:24:41
1. Block chain is a public record of bitcoin transactions in chronological order. The block chain is shared by all bitcoin users. It is used to verify the permanence of bitcoin transactions and prevent double consumption
a block is a record in the block chain, which contains and confirms the transactions to be processed. On average, a new block containing transactions is added to the block chain by mining every 10 minutes
more can be found on bitcoin home.
a block is a record in the block chain, which contains and confirms the transactions to be processed. On average, a new block containing transactions is added to the block chain by mining every 10 minutes
more can be found on bitcoin home.
2. The following is from: http://bitcoin.org/zh_ Cn / about
historical background
bitcoin is one of the first currencies to realize the concept of "cryptocurrency". In 1998, Wei Dai first expounded the concept of "cryptocurrency" in cypherpunks mailing list. Based on the basic concept of money, which is used to pay for goods, services and debt or any form of records in a given country or economy, bitcoin is a new form of money. Its original design is to integrate the idea of not relying on the central authority, using the principle of cryptography to control the issuance and transaction of money
in 2009, Satoshi Nakamoto published the first bitcoin specification and its proof of concept in the cryptography mailing list. At the end of 2010, Nakamoto claimed that he had transferred to other affairs and left the project. The creator of bitcoin never revealed his true identity, but left his invention to the world. Today, the origin and motivation of the invention of bitcoin is still a mysterious story
since 2010, many developers have devoted themselves to this project, and the bitcoin community has grown rapidly. Between June and July 2011, bitcoin suddenly gained media attention, leading to large-scale buying. The resulting bubble led to the continued decline in the price of bitcoin in the second half of 2011. After that, the price of bitcoin graally rose to the height of 2011
in order to regulate, protect and promote the development of bitcoin, the bitcoin foundation was established on September 27, 2012. Nowadays, with the increasing number of bitcoin users, bitcoin economy is developing rapidly
technical features
any network like bitcoin has the following basic features:
bitcoin can be transferred between any node of the network
the transaction is irreversible
the use of block chain avoids the occurrence of double consumption
the transaction will spread out in a few seconds and pass validation in 10 to 60 minutes
transaction processing and currency issuance are carried out through mining
bitcoin can be received at any time whether it is online or not<
economic rules
the whole bitcoin network jointly implements the following rules:
the total amount of bitcoin issued is about 21 million
a bitcoin can be divided into 8 decimal places, with a total of about 21 × 1014 monetary units
transaction costs are very low and most of them are free
statistics
bitcoin network has been running continuously for more than 48 months. In the past year, bitcoin's security features have attracted attention and developed significantly. As of April 2013:
the longest block chain has more than 232000 blocks
one of the largest distributed computing networks in the world, with more than 65 trillion hashes per second
there are 50000 transactions every day, with a total amount of several million US dollars
the total value of bitcoin in circulation exceeds US $1.3 billion
there is only one major security incident in the protocol, which was resolved in August 2010
other information can be referred to:
Network: http://ke..com/view/5784548.htm
bitcoin official website: http://bitcoin.org/zh_ CN/
historical background
bitcoin is one of the first currencies to realize the concept of "cryptocurrency". In 1998, Wei Dai first expounded the concept of "cryptocurrency" in cypherpunks mailing list. Based on the basic concept of money, which is used to pay for goods, services and debt or any form of records in a given country or economy, bitcoin is a new form of money. Its original design is to integrate the idea of not relying on the central authority, using the principle of cryptography to control the issuance and transaction of money
in 2009, Satoshi Nakamoto published the first bitcoin specification and its proof of concept in the cryptography mailing list. At the end of 2010, Nakamoto claimed that he had transferred to other affairs and left the project. The creator of bitcoin never revealed his true identity, but left his invention to the world. Today, the origin and motivation of the invention of bitcoin is still a mysterious story
since 2010, many developers have devoted themselves to this project, and the bitcoin community has grown rapidly. Between June and July 2011, bitcoin suddenly gained media attention, leading to large-scale buying. The resulting bubble led to the continued decline in the price of bitcoin in the second half of 2011. After that, the price of bitcoin graally rose to the height of 2011
in order to regulate, protect and promote the development of bitcoin, the bitcoin foundation was established on September 27, 2012. Nowadays, with the increasing number of bitcoin users, bitcoin economy is developing rapidly
technical features
any network like bitcoin has the following basic features:
bitcoin can be transferred between any node of the network
the transaction is irreversible
the use of block chain avoids the occurrence of double consumption
the transaction will spread out in a few seconds and pass validation in 10 to 60 minutes
transaction processing and currency issuance are carried out through mining
bitcoin can be received at any time whether it is online or not<
economic rules
the whole bitcoin network jointly implements the following rules:
the total amount of bitcoin issued is about 21 million
a bitcoin can be divided into 8 decimal places, with a total of about 21 × 1014 monetary units
transaction costs are very low and most of them are free
statistics
bitcoin network has been running continuously for more than 48 months. In the past year, bitcoin's security features have attracted attention and developed significantly. As of April 2013:
the longest block chain has more than 232000 blocks
one of the largest distributed computing networks in the world, with more than 65 trillion hashes per second
there are 50000 transactions every day, with a total amount of several million US dollars
the total value of bitcoin in circulation exceeds US $1.3 billion
there is only one major security incident in the protocol, which was resolved in August 2010
other information can be referred to:
Network: http://ke..com/view/5784548.htm
bitcoin official website: http://bitcoin.org/zh_ CN/
3.
blockchain technology is not only the underlying technology of bitcoin, but also the core and infrastructure of bitcoin bitcoin has been running without any centralized organization operation and management. Later, bitcoin technology was abstracted, which was called blockchain technology or distributed ledger technology
extended data:
disadvantages of blockchain technology applied to digital currency:
first, there is no circulation management organization for "decentralization" blockchain technology is essentially a distributed database system with one-way linked list logic structure and P2P network design mode, which determines that there is no unified central control system for virtual currency based on blockchain technology
Second, it is difficult to effectively control the quantity supply the circulation of virtual currency based on blockchain technology is fixed, and according to Fisher Equation, the total transaction volume of the whole society under a certain price level in a certain period has a certain proportion with the required nominal currency volume, while the constant currency volume obviously can not meet the requirements of the growing total price of social goods Thirdly, "mining mechanism" is difficult to create recognized value bitcoin itself has no value and no national credit support. Some people think that "by continuously consuming computing power and energy to inject value into virtual currency", but it is obviously not the most efficient choice to consume millions of calculations in order to find a hash value that meets the requirements Fourthly, procers and early holders are easy to get high seigniorage any virtual currency based on blockchain technology is held by a few people at the initial stage of its development. Take bitcoin as an example. At first, bitcoin was only a proct of a few people's game. The first bitcoin purchase in May 2010 was $10000 BTC's purchase of $25 pizza. The first bitcoin transaction completed in July of the same year was $0.04/btc4.
Although many investors know nothing about bitcoin mining, they still can't resist the temptation of bitcoin price and plan to invest in the mining army. So if you also want to mine, I believe you will have a question in your heart: "what is a bitcoin miner? What is the principle of bitcoin mining machine? " To solve this problem, let's remember some popular science today
origin of bitcoin
to fully understand the origin of bitcoin, we have to mention the existing financial system
bitcoin mining machine specially used for mining. The popular digital currencies in 2013 include bitcoin, Leyte coin, zeta coin, pennies (Internet), invisible gold bar, red coin, pole coin, BBQ coin and prime currency. At present, hundreds of digital currencies are issued all over the world
with the orderly implementation of cashless society, banknotes will inevitably disappear in the long river of history with the passage of time. The future digital currency is believed to be similar to bitcoin, but it is by no means a limited supply. But when the human ability to proce wealth can be completely matched by the computing power of the computer, the issuing speed of e-money is directly proportional to or slightly exceeds the computing speed of the computer to create moderate inflation. In the future, while mining, it is also creating value rather than wasting electricity. In the end, the small changes in proctivity of digital currency match the difficulty of computing power, which may be the final form of human currency
5. Different, each cryptocurrency has its own blockchain
block chain is a public record of bitcoin transactions in chronological order. The block chain is shared by all bitcoin users. It is used to verify the permanence of bitcoin transactions and prevent double consumption
a block is a record in the block chain, which contains and confirms the transactions to be processed. On average, a new block containing transactions is added to the block chain by mining every 10 minutes.
block chain is a public record of bitcoin transactions in chronological order. The block chain is shared by all bitcoin users. It is used to verify the permanence of bitcoin transactions and prevent double consumption
a block is a record in the block chain, which contains and confirms the transactions to be processed. On average, a new block containing transactions is added to the block chain by mining every 10 minutes.
6. Bitcoin
the initials of bitcoin are used to represent the concept of bitcoin or the whole bitcoin network itself. For example: "today I learned something about the bitcoin agreement."
bitcoin without capital letters indicates a unit of account. For example: "I transferred 10 bitcoin today." The unit is also usually abbreviated as BTC or XBT
bitcoin address
a bitcoin address is like a physical address or an email address. This is the only information you need to provide when someone pays you bitcoin. An important difference, however, is that each address should only be used for a single transaction
peer to peer network
peer to peer network is a system that allows a single node to interact directly with other nodes, so that the whole system can operate like an organized collective. For bitcoin, the bitcoin network is built in such a way that each user is spreading the transactions of other users. And importantly, there is no need for the bank to be a third party
hash rate
hash rate is a measure of bitcoin network processing capacity. In order to ensure security, bitcoin network must carry out a lot of mathematical operations. When the network reaches a hash rate of 10th / s, it can perform 10 trillion calculations per second
transaction confirmation
transaction confirmation means that a transaction has been processed by the network and is unlikely to be revoked. When a transaction is included in a block, an acknowledgement is received, and each subsequent block corresponds to an acknowledgement. For a small amount of transaction, a single confirmation can be regarded as safe. However, for a large amount of transaction such as US $1000, it is reasonable to wait for more than six confirmations. Each confirmation exponentially reces the risk of cancellation
blockchain
blockchain is a public record of bitcoin transactions in chronological order. The block chain is shared by all bitcoin users. It is used to verify the permanence of bitcoin transactions and prevent double consumption
cryptography
cryptography is a branch of mathematics, which allows us to create mathematical proofs that can provide high security. Cryptography is also used in e-commerce and online banking. For bitcoin, cryptography is used to ensure that no one can use the money in other people's wallets or break the blockchain. Cryptography is also used to encrypt wallets, so you can't use wallets without a password<
signature
cryptography signature is a mathematical mechanism for people to prove ownership. For bitcoin, a bitcoin wallet is associated with its private key by some mathematical magic. When your bitcoin software signs a transaction with the corresponding private key, the whole network will know that the signature matches the spent bitcoin. However, no one in the world can guess your private key to steal your hard-earned bitcoin
wallet
bitcoin wallet is roughly the equivalent of physical wallet in bitcoin network. The wallet actually contains your private key, which allows you to consume the bitcoin allocated to the wallet in the block chain. Like a real wallet, each bitcoin wallet displays the total balance of all bitcoins it controls and allows you to pay someone a certain amount of bitcoin. This is different from the credit card used by merchants to dect money
block
a block is a record in the block chain, which contains and confirms the transactions to be processed. On average, a new block containing transactions is added to the block chain by mining every 10 minutes
double consumption
If a malicious user tries to pay bitcoin to two different payees at the same time, it is called Double consumption. Bitcoin mining and blockchain will reach an agreement on the network that one of the two deals will be confirmed and considered valid
private key
the private key is a secret data block that proves that you have the right to consume bitcoin from a specific wallet. It is implemented through a cryptographic signature. If you are using wallet software, your private key is stored in your computer; If you are using an online wallet, your private key is stored on a remote server. Don't disclose private keys, because they allow you to consume the bitcoin in the corresponding bitcoin wallet
Mining
bitcoin mining is a process of using computer hardware to do mathematical calculation for bitcoin network to confirm transactions and improve security. As a reward for their service, miners can get the Commission included in the transaction they confirm, as well as the newly created bitcoin. Mining is a professional and competitive market. The bonus is divided according to the amount of calculation. Not all bitcoin users mine, and it's not easy to make money from mining
bit
bit is a common unit used to indicate the sub unit of a bitcoin - 1000000 bit is equal to 1 bitcoin (BTC or B & 8422;), This unit is more convenient for marking tips, goods and service prices
BTC
BTC is used to mark a bitcoin (B & 8422;) The common unit of.
the initials of bitcoin are used to represent the concept of bitcoin or the whole bitcoin network itself. For example: "today I learned something about the bitcoin agreement."
bitcoin without capital letters indicates a unit of account. For example: "I transferred 10 bitcoin today." The unit is also usually abbreviated as BTC or XBT
bitcoin address
a bitcoin address is like a physical address or an email address. This is the only information you need to provide when someone pays you bitcoin. An important difference, however, is that each address should only be used for a single transaction
peer to peer network
peer to peer network is a system that allows a single node to interact directly with other nodes, so that the whole system can operate like an organized collective. For bitcoin, the bitcoin network is built in such a way that each user is spreading the transactions of other users. And importantly, there is no need for the bank to be a third party
hash rate
hash rate is a measure of bitcoin network processing capacity. In order to ensure security, bitcoin network must carry out a lot of mathematical operations. When the network reaches a hash rate of 10th / s, it can perform 10 trillion calculations per second
transaction confirmation
transaction confirmation means that a transaction has been processed by the network and is unlikely to be revoked. When a transaction is included in a block, an acknowledgement is received, and each subsequent block corresponds to an acknowledgement. For a small amount of transaction, a single confirmation can be regarded as safe. However, for a large amount of transaction such as US $1000, it is reasonable to wait for more than six confirmations. Each confirmation exponentially reces the risk of cancellation
blockchain
blockchain is a public record of bitcoin transactions in chronological order. The block chain is shared by all bitcoin users. It is used to verify the permanence of bitcoin transactions and prevent double consumption
cryptography
cryptography is a branch of mathematics, which allows us to create mathematical proofs that can provide high security. Cryptography is also used in e-commerce and online banking. For bitcoin, cryptography is used to ensure that no one can use the money in other people's wallets or break the blockchain. Cryptography is also used to encrypt wallets, so you can't use wallets without a password<
signature
cryptography signature is a mathematical mechanism for people to prove ownership. For bitcoin, a bitcoin wallet is associated with its private key by some mathematical magic. When your bitcoin software signs a transaction with the corresponding private key, the whole network will know that the signature matches the spent bitcoin. However, no one in the world can guess your private key to steal your hard-earned bitcoin
wallet
bitcoin wallet is roughly the equivalent of physical wallet in bitcoin network. The wallet actually contains your private key, which allows you to consume the bitcoin allocated to the wallet in the block chain. Like a real wallet, each bitcoin wallet displays the total balance of all bitcoins it controls and allows you to pay someone a certain amount of bitcoin. This is different from the credit card used by merchants to dect money
block
a block is a record in the block chain, which contains and confirms the transactions to be processed. On average, a new block containing transactions is added to the block chain by mining every 10 minutes
double consumption
If a malicious user tries to pay bitcoin to two different payees at the same time, it is called Double consumption. Bitcoin mining and blockchain will reach an agreement on the network that one of the two deals will be confirmed and considered valid
private key
the private key is a secret data block that proves that you have the right to consume bitcoin from a specific wallet. It is implemented through a cryptographic signature. If you are using wallet software, your private key is stored in your computer; If you are using an online wallet, your private key is stored on a remote server. Don't disclose private keys, because they allow you to consume the bitcoin in the corresponding bitcoin wallet
Mining
bitcoin mining is a process of using computer hardware to do mathematical calculation for bitcoin network to confirm transactions and improve security. As a reward for their service, miners can get the Commission included in the transaction they confirm, as well as the newly created bitcoin. Mining is a professional and competitive market. The bonus is divided according to the amount of calculation. Not all bitcoin users mine, and it's not easy to make money from mining
bit
bit is a common unit used to indicate the sub unit of a bitcoin - 1000000 bit is equal to 1 bitcoin (BTC or B & 8422;), This unit is more convenient for marking tips, goods and service prices
BTC
BTC is used to mark a bitcoin (B & 8422;) The common unit of.
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