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 0xfa90cc175e5bd7c32609cf5333cf946cd63ca896714f20bebd1501a174eec20b. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41e2f1c7-6e62-4c4b-851d-80672059dff5.json and https://artists.proofprofile.net/proofs/artist/41e2f1c7-6e62-4c4b-851d-80672059dff5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Producer, Vol. 1: G-Clef Da Mad Komposa
Drowning (Water) [Instrumental Jazz Cover]
G-Clef da Mad Komposa Presents: The Producer, Volume 1
G-Clef da Mad Komposa Presents: The Producer, Vol. 2