THE RECORD: a hash-chained Modulign address ledger of 1,000,000 legal documents

THE RECORD is an append-only, hash-chained ledger assigning Modulign (DAG-OR) addresses to legal documents from the Harvard Caselaw Access Project's openly published static archive. This deposit contains the complete implementation (addresser, pipelines, verifiers, schema), the chain anchor file, the verified 1,000-row proof slice, and the complete 1,000,000-row ledger in ten JSONL shards. Each row carries a permanent GSI-ID, a canonical Modulign address, the source document URL, the SHA-256 of the exact bytes retrieved, and the SHA-256 of the Modulign Standard v3.0 specification implemented (per its section 26.3). Rows chain by row_hash = SHA-256(prev_hash + canonical row JSON) from a fixed genesis string; verify_full.py recomputes the entire chain from genesis. All classifications are automated and carry the ^PROV (provisional) grade the specification mandates for unannotated automated observers; none claims evidence grade. The run: sequence 1,001 through 1,000,000 — 999,000 documents — was addressed in one continuous run beginning 2026-08-27T07:32:24.797Z and reaching row 1,000,000 at 2026-08-27T07:40:39.361Z (8 minutes 14.6 seconds, including one mid-run crash and recovery visible in the row timestamps). Chain heads were committed to the public repository at https://github.com/vince-gonzalez/the-record at 100,000-row intervals while the run was in progress, so the repository's commit timestamps witness the pace independently of this deposit. Chain genesis hash: 138219a09bf3bebc37a877f7b6c81704f52b4b8a0490de373b348ef36dfdb2f3 Chain head at seq 1,000,000: 11644eb269e3940df5b8b2aa722bcf568ea19672c31100fba5df026635a791f1 SHA-256 of the-record-v1.0.zip: 25b35831cf09a1b38d2b46587895ee04cae3366466c4ac3d4f4026e29d755c42 SHA-256 of the-record-ledger-1M-v1.0.zip: c297a30b8761494b3975e68374c3ae02e8dc3772bb3fed03cce798d2a86df588 Jurisdiction coverage: 19 United States jurisdictions (New York 673,937; Pennsylvania 103,846; Alabama 75,674; District of Columbia 36,598; others). Source corpus: static.case.law, bulk-published public court records.