and APIs to access Bitcoin's data in various formats such as HTML, JSON or XML. For example, one can copy and paste Bitcoin addresses, transaction hash.
Table of contents
- What Does the Bitcoin Blockchain Record?
- How do they work?
- bitcoin-cli getblock – ChainQuery
- Data directory
The reward for this block is 1,,, Satoshi and the amount of fees for the transactions in this block is 26,, The summation of the latter two numbers is 1,,, Satoshi that is 68 Satoshi more than the coinbase transaction output. A Merkle root is created by hashing together pairs of transaction IDs, which provides a short yet unique fingerprint for all the transactions in a block. This Merkle root is then used as a field in a block header, which means that every block header will have a short representation of every transaction inside the block. Nonce The nonce in a bitcoin block is a bit 4-byte field whose value is adjusted by miners so that the hash of the block will be less than or equal to the current target of the network.
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The rest of the fields may not be changed, as they have a defined meaning. Version Block version related to protocol proposals underway Bits. The Transactions Table This table includes the following fields on all the transactions. Date Date of the Transaction. Time Time of the Transaction. Fee Total fees paid to process this transaction. The number of inputs in the transaction. The number of outputs in the transaction. This is done to make sure a transaction confirms as quickly as possible.
This is not considered a double spend, as the receiving address es typically remain the same. This is the earliest time that miners can include the transaction in their hashing of the Merkle root to attach it in the latest block to the blockchain. Address Information Table This table provides an overview on all the existing addresses in the Bitcoin network. Address Number of Active Blocks Number of blocks that this address was either a receiver or sender of Bitcoin.
First Active Block The block number of the first block that this address has been involved in a transaction. Last Active Block The block number of the last block that this address has been involved in a transaction. Number of Transactions Number of transactions that this address was either a receiver or sender of Bitcoin. Number of Sent Transactions The number of transactions that the address was the sender. Number of Sent Transaction Blocks The number of blocks that this address has been involved as a sender of Bitcoin.
First Sent Transaction Block The block number of the first block that this address has been involved as a sender of Bitcoin. Last Sent Transaction Block The block number of the last block that this address has been involved as a sender of Bitcoin.
What Does the Bitcoin Blockchain Record?
Number of Received Transactions The number of transactions that the address was the receive. Number of Received Transaction Blocks The number of blocks that this address has been involved as a receiver of Bitcoin. First Received Transaction Block The block number of the first block that this address has been involved as a receiver of Bitcoin. Last Received Transaction block The block number of the last block that this address has been involved as a receiver of Bitcoin.
Final Balance Final balance of the address.
How do they work?
New blocks are created after further mining takes place or a transaction occurs where Bitcoin is exchanged. Blocks are stacked on top of each other in such a way that one block depends on the previous. In this manner, a chain of blocks is created; this is where the term "blockchain" comes from.
When a transaction is submitted to the Bitcoin network, the information is passed on through all Bitcoin nodes—all computers connected to other computers in the blockchain—at the same time through the blockchain. In this way, it functions much like a public ledger, accounting for economic transactions and providing a way to verify that all Bitcoin users have been equipped with the same information. Everyone can download a copy of the blockchain and use it to trace the path of Bitcoins from one Bitcoin transaction to another.
It should be noted that although there is a record of every Bitcoin transaction ever made, they are linked to a specific Bitcoin address, rather than a personally-identifying name or email. For this reason, Bitcoin is considered pseudonymous. The goal of a blockchain is to allow digital information to be recorded and distributed to every participant, but never edited.
While a blockchain can be used to store any number of data points votes in an election, product inventories, state identifications, deeds to homes, etc. In a blockchain, each node has a full record of the data that has been stored on the blockchain since its inception.
For Bitcoin, this data includes the entire history of all Bitcoin transactions. If one node has an error in its data, it can use the thousands of other nodes as a reference point to correct itself. Blockchains consist of a series of individual blocks, arranged in chronological order based on the order of transactions. There are two parts to the information contained in a block. The first part consists of the header elements: information about the location and other data related to the transactions contained within that block.
For example, a hash within the header points to the previous block. There are no hashes for genesis blocks because these blocks have no predecessor. A merkle tree —a data structure used in computer science to record transactions—is used to display the sequence of transactions contained within the block.
bitcoin-cli getblock – ChainQuery
Another hash within the block contains timestamp information, the nonce, and the difficulty level. Here is a brief explanation of each of these components:. The second part is the identifier information. Again, this is a cryptographic hash function. Knowledge Graphs.
Data directory
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