OKX Order Book Channels Checksum Field Deprecation

Phát hành vào 21 thg 5, 2026Thời gian đọc: 2 phút

To enhance feed efficiency and stability, OKX is scheduled to deprecate the checksum field across WebSocket order book channels. The deprecation will take effect on the demo environment on 2 June 2026 and on the production environment on 23 June 2026.

The change applies to the books, books-l2-tbt, and books50-l2-tbt channels . After the deprecation date, the checksum field will remain present in push messages but will always return 0 and must no longer be used for data integrity validation. The books5 and bbo-tbt channels do not carry a checksum field and are not affected. This change affects JSON WebSocket channels only; SBE market data feeds are not impacted.

Before the deprecation takes effect, please migrate from checksum to seqId/prevSeqId to verify data continuity and accuracy. OKX WebSocket connections enforce TLS encryption (wss://), which together with rigorous seqId/prevSeqId validation provides equivalent protection against data integrity issues.