Context\n- We are formalizing time travel semantics for Echo (multi-stream time + pause/rewind/buffer/catch-up).\n- We need the spec + digest pins to be merged so future implementation work has a stable contract.\n\nGoal\n- Land the TimeStreams/Wormholes/admission decisions spec changes and align commit/tick digest docs so replay/audit stays truthful.\n\nScope\n- [ ] Keep as the canonical time model spec (HostTime vs HistoryTime, TimeStreams/Cursors, StreamAdmissionDecision).\n- [ ] Keep pinned as HistoryTime via (diagnostic lane, not in v2).\n- [ ] Ensure the related specs stay consistent:\n - ()\n - (admission decisions are non-canonical metadata, pinned via )\n - (planned )\n - (decision recorded)\n\nExit Criteria\n- [ ] Specs above are consistent and merged to .\n- [ ] ROADMAP includes TT0 and this issue is linked from the roadmap Issue Table.\n\nLinks\n- \n- \n- \n- \n
Context\n- We are formalizing time travel semantics for Echo (multi-stream time + pause/rewind/buffer/catch-up).\n- We need the spec + digest pins to be merged so future implementation work has a stable contract.\n\nGoal\n- Land the TimeStreams/Wormholes/admission decisions spec changes and align commit/tick digest docs so replay/audit stays truthful.\n\nScope\n- [ ] Keep as the canonical time model spec (HostTime vs HistoryTime, TimeStreams/Cursors, StreamAdmissionDecision).\n- [ ] Keep pinned as HistoryTime via (diagnostic lane, not in v2).\n- [ ] Ensure the related specs stay consistent:\n - ()\n - (admission decisions are non-canonical metadata, pinned via )\n - (planned )\n - (decision recorded)\n\nExit Criteria\n- [ ] Specs above are consistent and merged to .\n- [ ] ROADMAP includes TT0 and this issue is linked from the roadmap Issue Table.\n\nLinks\n- \n- \n- \n- \n