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 0x317097eef35d5a3ad3848c1c44277fa52d8ad234a868a377f41e8305e62c484b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a48627e-77b4-4b31-9fa5-ba7a63d4ea0c.json and https://artists.proofprofile.net/proofs/artist/0a48627e-77b4-4b31-9fa5-ba7a63d4ea0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bechidinthe Yo Jawani (From "Matti Mala")