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 0xb9e6a1eeaef9f95bd62a7df473320ab3e5b6bee5a88519ffd3e7718fdcee4bd2. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4040aa76-b2be-4542-83aa-0d0b3b1d855a.json and https://artists.proofprofile.net/proofs/artist/4040aa76-b2be-4542-83aa-0d0b3b1d855a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dracula’s Castle: Gothic Halloween Music