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 0xdd5c3cc1b8bf1bd205a8af8f75a04425e4120bea62f593c76f93a3e1bd7499af. 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/6ec0aec7-b3df-43dc-ad86-2083d23bf1f1.json and https://artists.proofprofile.net/proofs/artist/6ec0aec7-b3df-43dc-ad86-2083d23bf1f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Me Healing by a Dream About You (Live from Eyerbos)