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 0x28bd459c23ca2fa7ac8dc097e15cd67ff461b1a570fffb1773a0965199f3abb9. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8d3bad10-1afa-4915-bbc0-b162cea088bb.json and https://artists.proofprofile.net/proofs/artist/8d3bad10-1afa-4915-bbc0-b162cea088bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
String Fingers Accompaniment Tracks, Vol. I (Revised Edition)
If Tommy Was Here (Tribute to Thomas Whitfield)
The Greatest Time of Year (Radio Version)