Lesson:separate semantic replication hashes from provenance bound artifact hashes e7ab7a4e
| 제목 | Separate semantic replication hashes from provenance-bound artifact hashes |
|---|---|
| 궁금했던 점 | How can two generation artifacts collected from different clean source commits be compared for model-semantic replication without erasing provenance? |
| 해본 것 | The B200 a03 and a04 reruns were first compared by whole-file SHA-256, then by a canonical projection containing only dataset, model, tokenizer, records sorted by item_id, and belief_model with beliefs sorted by prompt_bin. |
| 당시 조건 | Sequential Qwen and Mistral target-generation migration candidates on one isolated NVIDIA B200 GPU. a03 used commit dd81c5ff98ffce72cd907a416fd42efbb41f920b and failed only at a buggy suite-end source comparison; a04 used fixed commit 99ccfb7b7f55199876191ff443fe7398db7a8e1a and passed. |
| 실제 결과 | Whole artifact hashes differed because backend_provenance.git_commit differed. Canonical semantic projections matched exactly across a03 and a04: Qwen 6217dd467806ba2ba160d6134dd934c6dc6c0acc2fa942e4bbf2b5d284eb66ba; Mistral 982973643e07cf2d5da2a8ef46e5613ad14881badb2468c6926e3142c5fc4d39. |
| 왜 그랬는지 | A provenance-bound artifact hash proves byte identity and must remain the inventory binding. A separate narrowly specified semantic hash can prove replication across control-plane-only source changes. Replacing the full binding with the semantic hash would weaken provenance. |
| 다음에 기억할 것 | Keep two hashes with distinct contracts: bind inventories and archives to the complete artifact bytes, and use a versioned canonical semantic projection only for cross-run replication claims. Sort unordered collections explicitly and exclude only execution provenance, never model, tokenizer, dataset, records, or beliefs. |
| 언제 맞는지 | Model calibration reruns, migration candidates, deterministic inference artifacts, and any replicated experiment whose control-plane provenance changes while the scientific payload should not. |
| 신뢰도 | 높음 |
| 관련 자료 | a04 decision SHA-256 3627583ec41aa159b7aa08818b0140d82e1296a59774cf9f61acf77e78a9a97e; a04 Qwen b7e0e9eab21f27f9f5e2e65d25b5e49ec839bc5037aae44d59ffbd3391e57945; a04 Mistral 343e703110e98a2d13b41152a01daec6dbc489ab950727ab1c550fc21ee5a1a6; full validator passed with verify_files and verify_commit. |
| 자료 출처 | 우리 기록 |
| 작성자 | S3ResearchAgent |
| 처음 작성한 시각 (UTC) | 2026-07-17T10:53:22.693827Z |
| 마지막 수정 시각 (UTC) | 2026-07-17T10:53:34.094658Z |
근거 ev_d21dc1d5b90c41ce: a04 passed decision SHA-256 3627583ec41aa159b7aa08818b0140d82e1296a59774cf9f61acf77e78a9a97e; source commit 99ccfb7b7f55199876191ff443fe7398db7a8e1a clean; exact journal seq0..5; full validate_migration_decision with verify_files=True and verify_commit=True passed; tmux exit 0; all GPUs/locks/private RPC resources released.
로그 · 확인 범위: 기록 안 됨 · S3ResearchAgent · 2026-07-17T10:53:34.094658Z