Record the fixed N1 research start line and dated interim plans

[seathatflowsinourveins]

Scope

The October 6 start-line record retains its decided text and historical observations. Dated October 7 amendments set the fixed S4 review/adjudication deadlines and define N1 data integrity as the opening unit, followed by N2 and N3 under their data gates.

• Amendment base: a431870fecc76e5263ec658a799618ceaa5a20fb.
• Current head: 79ada795b7e67f5eb802195b2ee80cfd82d4899d.
• Lane: lane:shared (existing label); trading custody/readback remains with 5f.
• Owned amendment paths: the existing start-line decision, new evidence/artifacts/ns2604-start-line-20261007/interim-plans.json, current dashboard start strings and native-generated evidence registry.
• Existing stack on Record NativeStack2604 native-bar owners and operational recount #791 is retained; no unstacking, rebase or change to Record NativeStack2604 native-bar owners and operational recount #791.

Resulting start terms

S4 review is due no later than 2026-10-08T04:00Z on the original 80-slot board as it stands; adjudication is due by 22:00Z. Only paper-engine safety or owner-only sign-in can hold it beyond that deadline. Open original gates receive the CC's dated dispositions, with no new gate or all-ready wait.

N1 inventories existing platform data-integrity capabilities and source limits, plans only referenced residual glue, and accepts through a NautilusTrader 2.0.0rc5 known-answer historical-data backtest. No strategy number precedes that acceptance. rnd-r1 owns N1; 5f owns trading-lane landing custody. N2 is the prospective D1 holdout with its October 14 validation opening; N3 is the catalyst Wave 1 rerun when data gates allow. SPY one_stress is a separate blocked mapping.

Dated readings cover native-sign-in Codex CLI N1 executors, the scoped gateway deviation, network/credential restrictions on research processes, actual R&D launch/zero-connector proof or exclusion, per-landing CC cues, entitled/public data, and outputs under lane:trading in this repository. They are re-checked at S4; no launch, sign-in or installation is asserted by this record.

The twelve original interim rows now have dated plan locators, verified source hashes, owners and next actions. Completion dates stay unknown where not committed. The essential profile remains a single planned north-star-rnd projection in adoption/manifest.json, owned by grand-catalog on #820 after J820-FIX2, with one sourced base e712bae606e8d27f010af8e3c13ded6b7a7c207a. No second essential list or published-profile claim is introduced.

SOTA sources

• Pinned trading rules at 6e6df2372bf7f11bf5bf5289b8bb71828d601912, trading: the desk's data-integrity glue rule (Layer 1.5) in the trading AGENTS.md #827: Layer 1.5, upstream features before referenced desk glue, and historical-data engine acceptance.
• NautilusTrader v2.0.0rc5: the selected unchanged engine for N1's later known-answer acceptance; this PR performs no backtest.
• Profile baseline e712bae606e8d27f010af8e3c13ded6b7a7c207a: the one profile source baseline, explicitly recorded in essential-profile-wf_383f6a1e-0cd.json (SHA256 6685923cc99f4457d5c0afa35f0e48cb4295b568709519e2a12ad41bb678ab5c); profile projection remains assigned to Consolidate catalog evidence, organic controls and foundation records #820.
• START RULINGS, review-ns2604-coop-20261007T072919Z, SHA256 6b0bde35825d0dbba8d55f1238cb0628621974eb41cb56b1f143580e7c3858e8; task-ns2604-coop-20261007T002252Z point 1 supplies the fixed dates and two hold reasons. These are adjudicated documentary authorities, not execution receipts.
• Retained dated completion-plan sources and hashes are bound in evidence/artifacts/ns2604-start-line-20261007/interim-plans.json.

Evidence-class table

Claim	Evidence class	Command / receipt
Fixed start terms, unit ordering and dated readings	source_review	Append-only decision amendments and the pinned authorities above
Historical decision prefix and twelve source bindings preserved	source_review	Original prefix SHA256 3e8cbc6285f077efa1254900dfed3fbcb676cd7f205ba6a228748f94adc0607c; 12 unique rows, matching retained source hashes/pointers; no completion date invented
Registry and scope are internally consistent	local_integration	Native registration of exactly three files; validate exit 0
Historical dashboard observations retained	source_review	Gate IDs/count unchanged; historical 27/80, 179 starter-test observation and activation-unattested state retained

Local commands run

rtk proxy nice -n 19 ionice -c3 python3 scripts/validate.py
exit 0: 69 components, 10,342 hashed files, 4 profiles, 214 receipts

rtk git diff --check
exit 0

Only documentation, plan bindings and checkpoint text changed; no functional test module changed. The native registration API preserved every unrelated entry and manifest metadata. Content commit 9d82413 precedes registry/checkpoint-last commit 79ada795. One authorized push, no rebase, no host/provider/GPU/research job, and no readiness promotion. A canonical-source identifier typo was corrected only in the newly appended section.

Decision record

docs/decisions/2026-10-06-north-star-start-line.md: existing decided text is retained verbatim, followed by dated amendments. The old conditional dates and campaign expectations remain historical; the new fixed ruling supersedes them.

Landing path

Co-op exact-head read and CI at 79ada795, command-center ACK, then the CC's cue for the existing #801 slot ahead of the S4 review. The cue must reconcile #791's inherited stack and T10 dependencies; this update changes no other PR. No rebase until explicitly relayed by the co-op. Shared-lane trading acknowledgement/custody remains with 5f before merge.

Host evidence

No host receipt or platform-status change. This PR states requirements and prospective plans, not passed native job gates.

Checklist

• Existing decided text and recorded observations preserved.
• No new essential list, profile installation or runtime/configuration change.
• No credentials, owner quotations or host paths added.
• No new paid service, subscription or required secret.
• Peer-owned worktrees and PR heads unchanged.
• Registry/checkpoint last; one push and no rebase.
• Co-op exact-head read, CI report, CC ACK and landing cue remain required.

[seathatflowsinourveins]

Superseded by #907 (ebe6c22), after #883. Closed as a legacy disposition.