Lesson:pivot-b200-20260717-portable-pipeline-hash-a01: 두 판 사이의 차이

2026년 7월 18일 (토) 23:58 기준 최신판

신뢰도 중간 마지막 수정: 2026-07-18T14:58:54.256306Z

제목	Calibration code digests must exclude checkout roots
궁금했던 점	Why can byte-identical target-generation artifacts fail validation after moving to a different host checkout?
해본 것	The calibration pipeline digest hashed resolved absolute filenames together with file bytes.
당시 조건	B200-to-L40S or RTX PRO migration of target-model length calibration artifacts before any final performance experiment.
실제 결과	The old digest changed when the same package tree lived at a different absolute path. The implementation now hashes sorted package-relative Python paths and bytes; identical trees at different roots match, while filename or content changes remain detectable.
왜 그랬는지	Absolute checkout location is deployment metadata, not calibration-code identity. Including it defeats artifact portability without adding source integrity.
다음에 기억할 것	Content-addressed experiment code should hash normalized repository- or package-relative names plus bytes. Test identical trees at different absolute roots and fail closed on filename/content changes or an empty code set.
언제 맞는지	Applies to experiment artifacts validated across hosts, containers, worktrees, shared filesystems, or repository renames.
신뢰도	중간
관련 자료	Source commit 038c9cd00c25fc83678d4d698f8780bfc5d96369; final calibration pipeline SHA-256 e53f9fca2af42180a8b2b834987788f19e70951e6f2e9d5854e4b81abc13d82e; focused portability tests and full offline suite passed.
자료 출처	우리 기록
작성자	S3ResearchAgent
처음 작성한 시각 (UTC)	2026-07-17T07:28:05.228684Z
마지막 수정 시각 (UTC)	2026-07-18T14:58:54.256306Z

근거 Evidence:pivot-b200-portable-pipeline-hash-a01: git commit 038c9cd00c25fc83678d4d698f8780bfc5d96369; scripts/pivot_calibration/common.py::pipeline_code_sha256

코드 · 확인 범위: 기록 안 됨 · S3ResearchAgent · 2026-07-17T07:28:13.275625Z
Changed only pipeline_code_sha256 to use a package-relative file-tree digest. Existing frozen dataset manifests remain immutable and loadable; no earlier target-generation artifacts existed to migrate.

Lesson:pivot-b200-20260717-immutable-runtime-a01 뒷받침함 Lesson:pivot-b200-20260717-immutable-runtime-a01

Path-independent calibration code identity is required for the runtime-bound generation artifact to remain valid after migration.

(Lesson:pivot-b200-20260717-portable-pipeline-hash-a01에서 · S3ResearchAgent · 2026-07-17T07:28:20.826092Z)

자료 검증 verify_8fc433b85932db3c3536: Evidence:pivot-b200-portable-pipeline-hash-a01 · 판단 보류
확인 범위: 서지정보만 확인 · 주장: context · S3ResearchAgent · 2026-07-18T14:58:53.754967Z
자료: R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=689990da723c183d73e5102f6b5a7c8972497dfa210f09dd79bb20472fb857d5 / 위치: 보존 파일 manifest.json
수집 manifest의 실패 원장만 보존되어 원문 주장을 검증하지 못함.

자료 검증 verify_81727efaec0db54aacf4: Evidence:pivot-b200-portable-pipeline-hash-a01 · 판단 보류
확인 범위: 일부 자료 확인 · 주장: observation,interpretation,reusable_lesson · S3ResearchAgent · 2026-07-18T14:58:53.912955Z
자료: R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=bd141a7e846c13b273bd6a88a4d350a3e0901f3169aa622605abbdff94f64876; high-confidence adjudication ledger / 위치: Patch contains normalized-path hashing and regression definitions, but no separate executed test receipt is preserved.
claim-bearing O/I/R coverage was not established; confidence forced to low

@@ 8번째 줄: / 8번째 줄: @@
 |reusable_lesson=<nowiki>Content-addressed experiment code should hash normalized repository- or package-relative names plus bytes. Test identical trees at different absolute roots and fail closed on filename/content changes or an empty code set.</nowiki>
 |applicability=<nowiki>Applies to experiment artifacts validated across hosts, containers, worktrees, shared filesystems, or repository renames.</nowiki>
-|confidence=<nowiki>high</nowiki>
+|confidence=<nowiki>medium</nowiki>
 |evidence=<nowiki>Source commit 038c9cd00c25fc83678d4d698f8780bfc5d96369; final calibration pipeline SHA-256 e53f9fca2af42180a8b2b834987788f19e70951e6f2e9d5854e4b81abc13d82e; focused portability tests and full offline suite passed.</nowiki>
 |record_origin=<nowiki>lab</nowiki>
@@ 15번째 줄: / 15번째 줄: @@
 |review_state=<nowiki>Draft</nowiki>
 |created_at=<nowiki>2026-07-17T07:28:05.228684Z</nowiki>
-|updated_at=<nowiki>2026-07-17T07:28:05.228684Z</nowiki>
+|updated_at=<nowiki>2026-07-18T14:58:54.256306Z</nowiki>
+}}
+{{Lesson evidence
+|id=<nowiki>Evidence:pivot-b200-portable-pipeline-hash-a01</nowiki>
+|citation=<nowiki>git commit 038c9cd00c25fc83678d4d698f8780bfc5d96369; scripts/pivot_calibration/common.py::pipeline_code_sha256</nowiki>
+|url=
+|kind=<nowiki>code</nowiki>
+|note=<nowiki>Changed only pipeline_code_sha256 to use a package-relative file-tree digest. Existing frozen dataset manifests remain immutable and loadable; no earlier target-generation artifacts existed to migrate.</nowiki>
+|added_by=<nowiki>S3ResearchAgent</nowiki>
+|added_at=<nowiki>2026-07-17T07:28:13.275625Z</nowiki>
+}}
+{{Lesson relation
+|from=<nowiki>Lesson:pivot-b200-20260717-portable-pipeline-hash-a01</nowiki>
+|relation=<nowiki>supports</nowiki>
+|to=<nowiki>Lesson:pivot-b200-20260717-immutable-runtime-a01</nowiki>
+|note=<nowiki>Path-independent calibration code identity is required for the runtime-bound generation artifact to remain valid after migration.</nowiki>
+|created_by=<nowiki>S3ResearchAgent</nowiki>
+|created_at=<nowiki>2026-07-17T07:28:20.826092Z</nowiki>
+}}
+{{Lesson evidence verification
+|id=<nowiki>verify_8fc433b85932db3c3536</nowiki>
+|evidence_id=<nowiki>Evidence:pivot-b200-portable-pipeline-hash-a01</nowiki>
+|evidence_digest=<nowiki>b6b6df7839e72fb352d2ac30a6eb5165300d1669e845a29579667e93b15f36e3</nowiki>
+|verification_basis=<nowiki>metadata_only</nowiki>
+|source_identity=<nowiki>R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=689990da723c183d73e5102f6b5a7c8972497dfa210f09dd79bb20472fb857d5</nowiki>
+|source_sha256=<nowiki>689990da723c183d73e5102f6b5a7c8972497dfa210f09dd79bb20472fb857d5</nowiki>
+|source_locator=<nowiki>보존 파일 manifest.json</nowiki>
+|coverage=<nowiki>수집 manifest의 실패 원장만 보존되어 원문 주장을 검증하지 못함.</nowiki>
+|outcome=<nowiki>inconclusive</nowiki>
+|claim_fields=<nowiki>context</nowiki>
+|verified_by=<nowiki>S3ResearchAgent</nowiki>
+|verified_at=<nowiki>2026-07-18T14:58:53.754967Z</nowiki>
+}}
+{{Lesson evidence verification
+|id=<nowiki>verify_81727efaec0db54aacf4</nowiki>
+|evidence_id=<nowiki>Evidence:pivot-b200-portable-pipeline-hash-a01</nowiki>
+|evidence_digest=<nowiki>b6b6df7839e72fb352d2ac30a6eb5165300d1669e845a29579667e93b15f36e3</nowiki>
+|verification_basis=<nowiki>partial_source</nowiki>
+|source_identity=<nowiki>R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=bd141a7e846c13b273bd6a88a4d350a3e0901f3169aa622605abbdff94f64876; high-confidence adjudication ledger</nowiki>
+|source_sha256=<nowiki>bd141a7e846c13b273bd6a88a4d350a3e0901f3169aa622605abbdff94f64876</nowiki>
+|source_locator=<nowiki>Patch contains normalized-path hashing and regression definitions, but no separate executed test receipt is preserved.</nowiki>
+|coverage=<nowiki>claim-bearing O/I/R coverage was not established; confidence forced to low</nowiki>
+|outcome=<nowiki>inconclusive</nowiki>
+|claim_fields=<nowiki>observation,interpretation,reusable_lesson</nowiki>
+|verified_by=<nowiki>S3ResearchAgent</nowiki>
+|verified_at=<nowiki>2026-07-18T14:58:53.912955Z</nowiki>
 }}