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 0x81007e0297047d9ff114e8041dc75a25e32e46e1209fca4cef8cf17267a3900c. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c168e178-d507-42c7-9565-60342036c4bd.json and https://artists.proofprofile.net/proofs/artist/c168e178-d507-42c7-9565-60342036c4bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Claudio Santoro: Obra Completa para Piano Solo, Vol. 1 - Prelúdios
Prelúdios, Série No. 2, Caderno No. 2: Prelúdio No. 13
Pequenos Prelúdios para Piano: Prelúdio No. 1
Prelúdios, Série No. 2, Caderno No. 2: Prelúdio No. 14
Prelúdios, Série No. 2, Caderno No. 2: Prelúdio No. 15
Pequenos Prelúdios para Piano: Prelúdio No. 2
Pequenos Prelúdios para Piano: Prelúdio No. 3
Prelúdios, Série No. 2, Caderno No. 2: Prelúdio No. 16
Prelúdios, Série No. 2, Caderno No. 2: Prelúdio No. 17
Prelúdios, Série No. 2, Caderno No. 2: Prelúdio No. 18
Prelúdios, Série No. 2, Caderno No. 2: Prelúdio No. 19
Prelúdios, Série No. 2, Caderno No. 2: Prelúdio No. 20
Prelúdios, Série No. 2, Caderno No. 2: Prelúdio No. 21
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No.1
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 2
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 3
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 4
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 5
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 6
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 7
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 8
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 9
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 1 (Manuscrito No. 2)
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 10
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 11
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 2 (Manuscrito No. 2)
Prelúdios, Série No. 2, Caderno No. 1: Prelúdio No. 12