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 0xdc5e342c7832909a0f65a8770012ff33065fa060e09536b18af5171dee62af8a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d52796e9-3c78-44fd-9990-5114cbd4fbf5.json and https://artists.proofprofile.net/proofs/artist/d52796e9-3c78-44fd-9990-5114cbd4fbf5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Let's Play Bongos (Digitally Remastered)
The End On Bongos (Digitally Remastered)
Let's Play Congas (Digitally Remastered)
… The End On Bongos (Digitally Remastered)