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 0xa1f1e3a9b11835fceb2f884b53ea4e4f89b76ddcebb6ad471753436a32ac2bb0. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a068d8b7-2082-4e13-83a7-cddc7e2ff9b5.json and https://artists.proofprofile.net/proofs/artist/a068d8b7-2082-4e13-83a7-cddc7e2ff9b5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Real Nigga Ride Muzik 2 (Re-Rock Edition)
Lost & Found vol.2 (Underground Donnie 2005-10)