[d6g8k5htny-coder]

Current disposition — 21 October 2026

Retention only. Not for merge. This PR remains OPEN/DRAFT. Its current retained head is 95a00ce4d3fc01a8ce68495369d150d7dbe93e86; the 2e7e25d9 head and diagnostic limits in the original description below are an earlier snapshot.

Later evidence is now recorded on the default branch. main#474 merged at ad664a5e6e5c338df3091d7dcfee20d432e7f81c on 21 October 2026 at 20:04:16 UTC. The landed packet README, §§8–9 records the exact reproduction of both residual trails and its limits. The underlying Anthropic diagnostic record and xAI re-execution retain their actual authorship and scope. Those later records supersede the original opening's statement that both discrepancies remain unexplained; they do not erase the earlier failed approaches retained here.

Limits remain explicit. The reproduction supplies sufficient invocations, not recovered historical command logs. This notice performs no numerical replay or mathematical review, changes no scientific disposition, and does not declare all of slice C closed. The original-timing custody and mask-receipt work on #458 / retention-only #479 is separate; no result or assignment for that work or R2a follows from this description update.

Metadata-only maintenance by OpenAI / ChatGPT GPT-6 Astra Pro, continuing the Workspace#25 author conversation, under pickup 6325515753. No source, retained output, ref, title or PR state is changed. Scientific effect NONE; independence credit 0. The complete original description follows unchanged as historical context.

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Original description — historical, preserved verbatim

Change and purpose

Retention only. Not for merge. This adds one directory, reviews/zeta_fold_residual_trail_diagnostics_20261021/. It keeps the raw outputs behind three diagnostic data notes on main#458:

• 6303179629
• 6304057120
• 6321367411

Until now those notes cited outputs and SHA-256 sums that existed only in one session's ephemeral container. Dylan's standing direction (#419 6321304701) is that nothing needed for verification may live only in a model's context. The pickup is 458/6321401884.

• integer_dps/ contains:
  • 39 runs of dbn/indep_ht.py (blob 736760f2): c910 at dps 50–61, 65, 70, 80, 85, 90, 95 and 100; c3435 at dps 55–57, 60, 65, 70, 75, 80, 85, 90–95, 100, 105, 110 and 120; and one warm-cache run;
  • warm.py, the unchanged SHA256SUMS and the run log.
• bit_prec/ contains:
  • 51 runs with mp.prec set directly by run_prec.py: 50 sweep runs (c910 at 168–207 bits and c3435 at 287–311 bits, skipping bit counts an integer dps already sets) and one sanity run at 203 bits;
  • the unchanged SHA256SUMS (dd4c09b5…), a byte copy of the source blob and the run log.
• versions_dps60/ (added in 2e7e25d9) holds c3435 at dps 60 under mpmath 1.3.0 and 1.4.0 and under Python 3.11 and 3.12. All four equal the pinned dps-60 output apart from time: the same non-converging trail, not the committed file.
• environment.txt and README.md give the exact commands, the source binding and the limits.

Current disposition

• Head: 2e7e25d9 on main 1e16211d68baa7e283c86901d511a796c51dc151.
• Producer: Anthropic Claude Opus 5.5 (claude-opus-5-5), Claude Code session session_01DKKe26v3CSgdYch8kiJLt9, the same provider as the packet author. The record is data, not a review. Credit 0. Scientific effect NONE.
• Claim: ZF-RESIDUAL-DIAG-RETENTION-01DKKE-20261021, released at delivery.
• Not for merge: retention only, like main#469. No review or integration is requested.
• Unresolved finding IDs: none.

Verification

At the head:

• sha256sum -c SHA256SUMS in all three subdirectories: all OK (40, 53 and 4 entries).
• bit_prec/c910_p203.out matches integer_dps/c910_dps60.out apart from its #prec and time lines.
• Both run logs list every retained output with rc 0, and every stderr was empty.
• Repository checks: workspace_landing_check.py and navigation_check.py report 0 problems; tests/test_research_delivery.py and tests.test_reader_links pass; git diff --check is clean.

Evidence and limits

• No cause is established. Both residual-trail discrepancies remain unexplained, and this closes no part of slice C.
• Untested: other mpmath versions for c3435, other machines, a precision that changes mid-run, and unrecorded script edits.
• Unchanged: the packet, its results, README §9 and every status.
• Rollback: close this PR.

https://claude.ai/code/session_01DKKe26v3CSgdYch8kiJLt9

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Generated by Claude Code

[d6g8k5htny-coder]

PICKUP — ULW-CONT-M471-DISPOSITION-20261021. Actual performer: OpenAI / ChatGPT GPT-6 Astra Pro, continuing the Workspace#25 author conversation; platform session ID unavailable, not dot or another OpenAI lane. My previous author scope is released and Workspace#25 is now merged.

Scope: this PR's description only. Prepend a dated, source-linked current-disposition note; preserve its complete original description verbatim as historical. The opening still names head2e7e25d9 and says both residual discrepancies are unexplained. Native current head is 95a00ce4d3fc01a8ce68495369d150d7dbe93e86; merged #474 at ad664a5e6e5c338df3091d7dcfee20d432e7f81c now records the exact reproduction. I read the landed packet README and will link its scoped result without reinterpreting it or claiming a new execution.

No existing task-local comments/claim were present; the inspected board has no #471-description writer. Immediate task/board reread precedes mutation. This is ordinary evidence-navigation maintenance, not numerical review or a new verdict. Keep OPEN/DRAFT/retention-only/not-for-merge, head/base/title, every repository file, original authorship, historical failures and all scientific limits unchanged. Do not take the original-timing receipt/review now held in #458/#479.

Completion: one serial body edit, fresh native readback, decoded UTF-8 preservation/identity checks, and personal release during this invocation; on contention stop the affected write. No source/ref/Ready/merge/CI/protection/private-data/scheduler changes. Scientific effect NONE; independence credit0.

Mandate · Delegation.

[d6g8k5htny-coder]

COMPLETED / personal release — ULW-CONT-M471-DISPOSITION-20261021, closing pickup6325515753.

One description-only edit now leads with the actual retained head 95a00ce4d3fc01a8ce68495369d150d7dbe93e86 and links #474's landed README at ad664a5e6e5c338df3091d7dcfee20d432e7f81c. It distinguishes the later residual-reproduction evidence from the original unexplained-discrepancy snapshot, preserving the Anthropic diagnostic and xAI execution attribution. All 3,395 UTF-8 bytes of the original description remain verbatim under a historical heading.

Verification: 10 local construction/preservation assertions and 2 comparisons against a fresh native decoded-body readback passed. Full updated body: 5,567 bytes, SHA256 8f010f0daa95ce9d219bae09473e3517c628ef4b727b6d29ce6b6bface5f5d16; original SHA256 3199a9140720efbc93d72f19588161c760c63a6a69973f905bd2825223c5986b. Method is transcription of the connector's decoded text followed by Python byte comparison, not raw HTTP capture. Native readback confirms unchanged head/base/title and OPEN/DRAFT/unmerged state. No numerical run or project-suite execution is claimed; no source/ref/Ready/merge/CI-dispatch/protection change was made. Natural edit-triggered checks, if any, are not represented as this worker's test evidence.

For Claude01DKKe and the other evidence consumers: this is navigation/currency maintenance only. The failed approaches, retained outputs, original release and not-for-merge boundary remain intact. The #458/#479 original-timing receipt and its designated review, R2a, packet-source changes and full slice-C disposition remain separate; no new task is assigned by this notice.

I release only this metadata scope, with no remaining reservation. Actual OpenAI/GPT-6 Astra Pro continuing Workspace#25-author conversation; session ID unavailable. Scientific effect NONE; independence credit0. Mandate · Delegation.

[d6g8k5htny-coder]

RETENTION CLOSEOUT

This branch is retention-only and not for merge. Its later substantive outcome is already recorded on landed main#474, while this PR preserves the raw diagnostic history and its limits. No claim, review, or integration remains. I am closing the PR conversation without deleting or rewriting the branch or any retained output.