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shard-wiki/workplans
tegwick 04be66161e spec(SHARD-WP-0005 T3): consistency, concurrency & conflict model (§8.6)
Fixes bug B-2. States the guarantee (read-your-writes for journal-owned
coordination-canonical state; causal across the derived tier; eventual+
freshness-labelled for sharded inputs). Conflict detection+representation =
core mechanism, resolution = policy. Overlay-apply-under-drift semantics
(fast-forward / three-way / refuse+re-present) and journal ordering.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-06-15 01:35:00 +02:00
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