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 0xfed2a84f4f5faa5f8af0a4069f05d99b4aad7929fc7b403f93ac9fb2697d88b6. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f501ef79-1b1e-466d-8579-b769b22d8db7.json and https://artists.proofprofile.net/proofs/artist/f501ef79-1b1e-466d-8579-b769b22d8db7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
You've Got a Friend (feat. Kurt Van Meter)
Echoes of the Outlaws (Original YouTube Series Soundtrack)
You're Not Alone (Tribute to the Troops)