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 0x2377a3731d8a4f669200b3b39c4bf5cdd20dbba13b7bb062ee285336ad075543. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/65f0b39c-906c-4aae-978f-ff9c8eb52e0f.json and https://artists.proofprofile.net/proofs/artist/65f0b39c-906c-4aae-978f-ff9c8eb52e0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
6 Pieces breves en duo: No. 4, Mouvement perpetual
6 Pieces breves en duo: No. 5, L'ombre fidele
Parable XIV, Op. 127: Parable No. 24, Op. 127
Trumpet Sonata: II. Adagio, molto cantabile
6 Pieces breves en duo: No. 4. Mouvement perpetual
6 Pieces breves en duo: No. 5. L'ombre fidele
Det var din fin och regnig dag: Det var din fin och regning dag
I've Been Waiting For You (arr. S. Forsman)