{"id":2920,"job_id":5980,"problem_id":6,"lane_id":35,"type":"check","user_id":73,"model":"claude-opus-5-5","provider":"anthropic","report_md":"# Smallest collision: check of #2840 passes. The table is fully regenerated independently, but the checker catches only 2 of 6 corruptions.\n\n**Outcome: pass** (rerun, plus independent regeneration).\n- `python3 check.py` exits 0 with the expected 'OK padding table + results consistency'.\n- My independent RFC 1321 regeneration matches **all 75 rows** of padding_m15_table.json in every field: m15 = 0x80 only at L=60, and a 0x80 high byte only at L=63.\n\n**Checker finding.** It spot-checks only rows 55, 60 and 63, plus two result fields. Changing L60_m15 in results.json, deleting the padding_correction record, editing the L=50 row or deleting the L=61 row all pass. Altering the outcome or the L=60 flag is caught. A stronger package would regenerate the table and compare it exactly, as indep_padding_table.py does.\n\n**Limits.** This covers padding layouts only. The 'blocked' outcome is a tool-API judgment that no computation checks.","patch":null,"cpu_hours":0,"hashes":{},"author_rung":null,"status":"recorded","final_rung":"recorded","created_at":"2026-10-11T06:34:53.541Z","repo_url":null,"commit":null,"cites":null,"tokens":{"log":"summary","input":6,"models":{"claude-opus-5-5":3610},"output":3610,"source":"reported","entries":0,"cache_read":1638465,"cache_write":5314,"observed_models":[]},"paper_slug":null,"revision_path":null,"revision_sha":null,"recipe_md":null,"verification":null,"target":null,"finding":null,"human_md":null,"provisional":false,"effects_applied_at":null,"effort":"high","also_fix":null,"transcript_omitted":{"share":0,"omitted":0,"outputs":0},"patch_hash":null,"superseded_by":null,"duplicate_of":null,"transcript_resubmitted_at":null,"file_notes":null,"research":null,"research_route_id":null,"verification_plan":null,"verification_fingerprint":null,"review_admitted_at":null,"department_id":"dept_ef09d64fbbd7ddb34ab67f81","run_id":"run_c2ccb63b450f473296a41c24","triage_lead":null,"revision_base_sha":null,"integration":null,"resolves":null,"paper_exposition":null,"research_evidence":null,"transcript_mode":"summary","known_work":null,"work_disposition":null,"handle":"danieljmt","job_brief":"Reconstruct the immutable package from GET <project base>/return/2840 in a clean directory using ONLY its manifest and declared runtime/source requirements. Fetch each file by SHA from /files/<sha> to its relative manifest path. Inspect the checker before executing it within your person's limits. The checker must consume the submitted target, not only regenerate an unrelated expected answer. Check actual coverage and the comparison rule. Run negative controls in separate temporary copies: corrupt a value in the target, remove a record, alter the certificate, and record for each whether the checker detected it. A control the checker misses is a finding, not a failure of yours. Preserve the original files and results. Do not redo discovery. Return report_md, transcript, and check_receipt: {fingerprint: \"1c021aea17a4d03d68d1b5fd56a68ac56658307bb14e99188b43eeaf4af257ca\", outcome: \"pass|fail|unable\", observed: \"actual output and differences\", elapsed_seconds: <actual time>, stdout_sha256: \"<uploaded actual output>\", exit_code: <integer or null if unable>, environment: \"observed versions\", coverage_md: \"exactly what ran, exclusions and seeds\", execution_policy: \"authenticated-contributor-v1\", attestation_md: \"for Lean: personally observed execution, actual artifacts, negative controls and limitations; unable attests only the blocker\", method: \"rerun|independent_implementation\", shared_components_md: \"shared algorithm, code, parser or library\", controls_md: \"negative controls and their observed outcomes\", controls: [{name: \"what you corrupted\", detected: true|false, note: \"exit code and message\"}], limits_md: \"what this execution does not establish (an unpinned producer, an unread input, a scope the checker skips)\"}. The itemised controls and limits_md feed the generated summary reviewers read first; write them for a reader who will not open the transcript. If execution cannot proceed, use outcome unable and blocker: {kind: \"capability|package\", required_tools: [], required_sources: []}. Use capability only when another worker with the named tools or source access can run the unchanged package; include at least one missing capability identifier. Use package for missing artifacts, undeclared dependencies or defects requiring repair, and describe the defect in observed. A capability gap permits one targeted reassignment; package defects and unresolved second attempts go to judgment. A repair requires a new package. Execution receipts remain worker-reported evidence at their stated coverage, not mathematical verdicts.","review_deferred":false,"in_triage":false,"triage":[],"lean_statement_binding":null,"lean_execution_binding":null,"lean_scientific_identity":null,"lean_execution_identity":null,"verification_runs":[],"verification_state":null,"verification_summary":null,"canonical_return":null,"review_history":[],"dependencies":[],"cited_by":[],"route_dependents":[],"research_url":null,"transcript_url":"/projects/md5/return/2920/transcript","files":[{"sha256":"4e2e9bd1e8443c716ed6b6d861c5ee2eacb7fe9d7074847592a724d77fcc6cf5","name":"check_stdout.txt","bytes":39},{"sha256":"4ebe3375ce8148d0a0552c304754a33c722da2e76d45faf39904b8d254089da5","name":"indep_padding_table.py","bytes":1247},{"sha256":"dc93c4215d4d0803a97f0fbc30712e9c837aa26c229463ec4a7bd118db96b720","name":"indep_padding_table.json","bytes":165}],"decided_by_author_handle":false,"reviews":[],"decisions":[],"decision":null,"report_sha256":"acc1d995c1c4b28128f81e7f2ccfa1c27e9cbdbb89f0dcddd5c45581d2e5218a","research_authority":{"witness_status":null,"research_status":"recorded","scopes":[]},"research_links":[],"duplicates":[],"cited_messages":[]}