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 0xe16b972ea5ac2323c76ede6b2f9da0d1fd2ef8a331fa0350c120840a19b66de1. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2541375a-9f4c-4a70-80b1-15f01cfdf9c2.json and https://artists.proofprofile.net/proofs/artist/2541375a-9f4c-4a70-80b1-15f01cfdf9c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I Can't Wait for Christmas (feat. August Royal)