Bitcoin Developer Glossary

Numbers

5

• 51 percent attack

A

• Address
• Ancestor mining
• Archival node

B

See also: Bitcoin Improvement Proposals (BIPs)

• Bare multisig
• Base58check
• Best block chain
• Best header chain
• Bitcoins
• Block
• Block 0
• Block chain
• Block header
• Block height
• Block reward
• Blocks-first sync
• Bloom filter

C

• Chain code
• Change address
• Change output
• Child key
• Child pays for parent
• Child private key
• Child public key
• Coinbase
• Coinbase transaction
• CompactSize
• Compressed public key
• Confirmation score
• Confirmations
• Confirmed transaction
• Consensus
• Consensus rules
• CPFP

D

• Data carrier transaction
• Data-pushing opcode
• Denomination
• Difficulty
• DNS seed
• Double spend

E

• Escrow contract
• Extended key

F

• Fork
• Free transaction
• Full node

G

• Generation transaction
• Genesis block

H

• Hard fork
• Hardened extended key
• HD protocol
• HD wallet
• HD wallet seed
• Header
• Header chain
• Headers-first sync
• Height
• High-priority transaction

I

• IBD
• Initial block download
• Input
• Internal byte order
• Inventory

L

• Lightweight client
• Locktime

M

• Mainnet
• Majority attack
• MASF
• Master chain code
• Master private key
• Maximum Block Size
• Merkle block
• Merkle root
• Merkle tree
• Message header
• Miner
• Miner-activated soft fork
• Miners fee
• Minimum relay fee
• Mining
• Multisig

N

• nBits
• Network difficulty
• Network magic
• nLockTime
• Node
• Non-data-pushing opcode
• Null data transaction

O

See also: Opcodes

• OP_RETURN transaction
• Opcode
• Opt-in replace by fee
• Orphan block
• Outpoint
• Output

P

See also: P2P protocol messages

• P2PKH address
• P2PKH output
• P2SH address
• P2SH multisig
• P2SH output
• Parent key
• Parent private key
• Parent public key
• Payment protocol
• Payment request
• Peer
• POW
• Private extended key
• Private key
• Proof of work
• Pruned node
• Pubkey script
• Public extended key
• Public key

R

See also: Bitcoin Core RPCs

• Raw transaction
• RBF
• Redeem script
• RedeemScript
• Regression test mode
• Regtest
• Relay fee
• Replace by fee
• Root seed
• RPC byte order

S

• Satoshis
• ScriptPubKey
• ScriptSig
• Sequence number
• Serialized block
• Serialized transaction
• Sighash
• SIGHASH_ALL
• SIGHASH_ANYONECANPAY
• SIGHASH_NONE
• SIGHASH_SINGLE
• Signature
• Signature hash
• Signature script
• Simplified Payment Verification
• Soft fork
• SPV
• Stale block
• Standard Transaction
• Start string

T

• Target
• Testnet
• Thin client
• Token
• Transaction fee
• Transaction malleability
• Transaction mutability
• Txid
• TxIn
• TxOut

U

• UASF
• Unconfirmed transaction
• User-activated soft fork
• UTXO

W

• Wallet
• Wallet Import Format
• Watch-only address
• WIF