Dei verbum, the Second Vatican Council's Dogmatic Constitution on Divine Revelation, was promulgated by Pope Paul VI on 18 November 1965, following approval by the assembled bishops by a vote of 2,344
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd090a56a38c8e4d53216ee4d28970394d2282b7490c267aefc6e326a6c158f60. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad402625-64e4-4d97-b413-da582af92528.json and https://artists.proofprofile.net/proofs/artist/ad402625-64e4-4d97-b413-da582af92528.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).