1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9c35336c0de8707b9a61472085eccd5f87ed8dabc2f0a86281483da97b5e9ee. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e83255e0-a212-4da2-aa4a-01b4859c3c2f.json and https://artists.proofprofile.net/proofs/artist/e83255e0-a212-4da2-aa4a-01b4859c3c2f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fryderyk Chopin: ANNA SERAFIŃSKA CHOPIN TRIO
Grand Valse Brillante in E-Flat Major Op. 18
Nie mówimy o Brunie - z filmu "Nasze Magiczne Encanto"/Ścieżka dźwiękowa polskiej wersji
We Don’t Talk About Bruno (From "Encanto")