Bitcoin chain length

The highest- height block we have in common with this node based on P2P inv messages this node sent us.The TXID of the transaction to get, encoded as hex in RPC byte order.

If payload is empty, as in verack and getaddr messages, the checksum is always 0x5df6e0e2 (SHA256(SHA256( ))).The estimatefee RPC estimates the transaction fee per kilobyte that needs to be paid for a transaction to be included within a certain number of blocks.Array of P2PKH or P2SH addresses used in this transaction, or the computed P2PKH address of any pubkeys in this transaction.The block belongs to a block chain which is not the same block chain as provided by a compiled-in checkpoint.Many fear that the blockchain will split when BU initiates a hard fork.A 1 is returned for those that were found and a 0 is returned for those that were not found.The first object will always describe the active chain (the local best block chain ).GetBlockHash RPC: returns the header hash of a block at the given height in the local best block chain.The data to be hashed can be any transaction element which the bloom.

The P2PKH or P2SH addresses used in this transaction, or the computed P2PKH address of any pubkeys in this transaction.While SegWit2X is a soft fork that would be compatible with the existent Bitcoin chain,. the blocks will double in size from the current 1 MB.The modified fees (see modifiedfee above) of in-mempool descendants (including this one).Questions about Bitcoin development are best asked in one of the.The JSON- RPC error and message fields will be set if a failure occurred.

ASCII string which identifies what message type is contained in the payload.Input objects will have the same order within the array as they have in the transaction, so the first input listed will be input 0.If an input later spends that outpoint, the filter will match it.Based on this value the new fee will be calculated using the same code as the estimatefee RPC.If a block only has a coinbase transaction, the coinbase TXID is used as.Specify now to bypass scanning for keys which are known to never have been used.The next transaction in the chain can be found by. limit to what size can be.GetMemPoolEntry: returns mempool data for given transaction (must be in mempool). New in 0.13.0.

All elements will be hashed in the byte order used in blocks (for.This may result in unreliable confirmation scoring for an unknown length of time.The signature script in decoded form with non-data-pushing opcodes listed.The listtransactions RPC returns the most recent transactions that affect the wallet.If the outputs were already locked or unlocked, it will also return true.

Get all transactions since a particular block (including watch-only.The merkle root is derived from the hashes of all transactions included in this block, ensuring that none of those transactions can be modified without modifying the header.There is a countless number of such blocks in the blockchain.Note: In order to minimize its size, the raw JSON response from Bitcoin Core.GetBlockHeader RPC: gets a block header with a particular header hash from the local block database either as a JSON object or as a serialized block header.The getmininginfo RPC returns various mining -related information.The listreceivedbyaddress RPC lists the total number of bitcoins received by each address.

The receiving peer can compare the inventories from an inv message.The walletpassphrase RPC stores the wallet decryption key in memory for the indicated number of seconds.WalletLock: removes the wallet encryption key from memory, locking the wallet.

Get the average hashes per second for all the blocks since the last.The number of confirmations received for the transaction containing this output.Import the address 1NL9w5fP9kX2D9ToNZPxaiwFJCngNYEYJo (giving it a label and scanning the entire block chain ) and the scriptPubKey 76a9149e857da0a5b397559c78c98c9d3f7f655d19c68688ac (giving a specific timestamp and label).If the funds are added to wallet, JSON null will be returned.As financial service firms expand their use of the bitcoin block chain for trading and business.Set to true to display accounts which have never received a payment.Peers which have been disconnected may have stale blocks in their.In addition, because the filter size stays the same even though.

The JSON- RPC error field will still be set to null if submission failed for one of these reasons.Use -1 to average all blocks produced since the last difficulty change.An array of objects, each one to be used as an input to the transaction.The following subsections briefly document core block details.Whether each requested output was found in the UTXO set or not.