Riset terverifikasi sumber: Bybit VS OKX Order

Verified Fact Boundary

2026-10-05 · 17:05 SGT

1. Bybit's V5 orderbook WebSocket documentation describes snapshot and delta messages for local order book maintenance. 2. Bybit's orderbook payload includes an update ID, cross sequence field and matching-engine timestamp fields for sequencing analysis. 3. Bybit's full orderbook documentation also describes seq as a cross sequence that can compare generation order across orderbook levels. 4. OKX API V5 documentation includes WebSocket order book channels and documents sequencing fields such as seqId and prevSeqId for order book continuity. 5. OKX documentation states that at least some order book variants do not return checksum and rely on seqId or prevSeqId sequencing instead. 6. A local order book implementation must define bootstrap, continuity checks, stale-data handling, reconnect behavior and downgrade behavior before using the book for execution.

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Decision Matrix

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Check	What it means	Practical action	Unknown to keep explicit
Bootstrap state	a bot must know whether the first book is a full snapshot or a partial update	discard execution signals until the local book is bootstrapped from a documented snapshot path	exchange-side snapshot latency under market stress
Sequence continuity	the local book is only useful when update order is coherent	track update IDs and sequence fields separately for each venue	cross-channel ordering under reconnect
Gap recovery	a missing delta can make depth stale while the WebSocket remains connected	trigger a full resync when continuity checks fail	provider incident details during silent packet loss
Timestamp interpretation	event timestamps and matching-engine timestamps answer different questions	log both arrival time and documented exchange timestamp without storing secrets	clock skew between local infrastructure and venue
Checksum boundary	checksum support is channel-specific and cannot be assumed across venues	use documented checksum only where the channel provides it and otherwise rely on sequencing plus resync	future channel-specific checksum changes
Execution stop rule	book integrity failure must stop order placement, not only raise a dashboard warning	pause execution when sequence, timestamp or resync rules disagree	manual override governance during volatility
Evidence log	debug evidence should prove the data boundary without leaking account state	store channel, symbol, sequence, timestamp and non-secret error labels	private venue support messages

Source Map

Bybit API Documentation: V5 WebSocket Public Orderbook (bybit-orderbook)
OKX API Documentation: OKX API V5 Order Book WebSocket Channels (okx-docs-v5)
Bybit API Documentation: V5 WebSocket Full Orderbook (bybit-full-orderbook)

Control Notes

1. Bootstrap state

Bootstrap state is the decision point where public documentation must become an operating rule. In this package, it means a bot must know whether the first book is a full snapshot or a partial update. The practical action is to discard execution signals until the local book is bootstrapped from a documented snapshot path. The unresolved edge is exchange-side snapshot latency under market stress, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, recovery guarantee, price implication, settlement guarantee or platform ranking.

2. Sequence continuity

Sequence continuity is the decision point where public documentation must become an operating rule. In this package, it means the local book is only useful when update order is coherent. The practical action is to track update IDs and sequence fields separately for each venue. The unresolved edge is cross-channel ordering under reconnect, so the article keeps that edge explicit instead of turning it into a reward claim, licensing claim, approval claim, recovery guarantee, price implication, settlement guarantee or platform ranking.