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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac332494f8d76fbb6e7ec102415e2bf3e5b9084ac9c7604a433b9cefaf6e29fa. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3e95cbc9-40c2-442f-b079-a7f8970f3d26.json and https://artists.proofprofile.net/proofs/artist/3e95cbc9-40c2-442f-b079-a7f8970f3d26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Cipher Patient Unmasked 3.0 and the Digital Abyss