Bitcoin Transaction and Script BIPs Articles

BIP 98 guide to fast-SHA256 Merkle trees, domain separation, unbalanced trees, proof encoding, CVE-2012-2459 avoidance and safe validation.

BIP 136 TxRef made simple. See what the proposal changes, its current status and what it means for Bitcoin users and operators.

BIP 149 guide covering its closed second SegWit deployment, guaranteed lock-in, BIP 8 framing, NODE_UAWITNESS, contingency dates and historical outcome.

BIP 180 guide covering its closed light-client fraud proof, transaction-size components, Merkle links, SegWit weight, threat model and limits.

BIP 118 guide covering its Draft Taproot design, evolving history, omitted prevout commitments, new key type, eltoo use, replay boundaries and testing.

BIP 115 guide covering its closed CHECKBLOCKATHEIGHT proposal, chain commitment, depth rule, script semantics, fork deployment and operational risks.

BIP 146 Signature Malleability made simple. See what the proposal changes, its current status and what it means for Bitcoin users and operators.

BIP 134 guide covering its closed hard-fork transaction format, tagged fields, malleability goal, parsing risks, deployment limits and SegWit comparison.

BIP 49 guide covering purpose 49 derivation, nested SegWit scripts, extended-key versions, account discovery, migration and recovery testing.

BIP 114 guide covering its closed MAST witness design, Merkle branches, privacy, script limits, consensus deployment and Taproot comparison.

BIP 143 signature hashing explained: learn the SegWit digest fields, input amount commitment, performance gains and validation requirements.

BIP 131 coalescing transactions explained as a closed hard-fork proposal using wildcard inputs to aggregate same-script UTXOs and their risks.