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 0x6740a00daf4f5a7857ea0f302f28f6b7895de9c71d6fdd92b6d896e128a924ec. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/295e335c-7e3b-44a0-a07c-bbd1d336605d.json and https://artists.proofprofile.net/proofs/artist/295e335c-7e3b-44a0-a07c-bbd1d336605d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Divertimento lugubre - Version fin de siècle
Suite pour cordes et machines - Version plébéienne
Polyptique constructiviste - Version en trompe-l'œïl
Apologie de Socrate - Version sans conséquence apparente
Les Illuminés de Bavière, concerto inachevé