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IEEE 3221.01-2025

IEEE Standard for Blockchain Interoperability - Cross-Chain Transaction Consistency Protocol
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IEEE 3221.01-2025

IEEE Standard for Blockchain Interoperability - Cross-Chain Transaction Consistency Protocol

PUBLISH DATE 2025
PAGES 26
IEEE 3221.01-2025
New IEEE Standard - Active. The technical architecture and details of three cross-chain approaches are described in this standard, including centralized/multi-signature notary-based cross-chain technology, HTLCbased cross-chain technology, and relay chain-based cross-chain technology.
This standard establishes criteria and requirements for the interoperability of blockchain networks and corresponding cross-chain transactions. The stated technical specifications and requirements support universally needed interoperability of blockchains and are applicable to most cross-chain scenarios. The specified consistency requirements apply to all cross-chain transactions under different cross-chain protocols.
This document provides a uniform standard for the interoperability of blockchain networks. It provides a classification of cross-chain protocols, including centralized/multi-signature notary, Hash Time-Locked Contract (HTLC), relay chain, etc. It provides requirements relevant to the cross-chain smart contract, cross-chain message format, cross-chain transaction process in different cross-chain protocols, and consistency considerations of cross-chain transactions.
SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number 3221.01
Publication Date June 17, 2025
Language en - English
Page Count 26
Revision Level
Supercedes
Committee Blockchain and Distributed Ledgers
Publish Date Document Id Type View
June 17, 2025 3221.01-2025 Revision