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 0x99177d8caecb2902b7990c99a16c790646499fe8db3482914eb48e556a7a6cef. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d526491a-1b81-46f2-8606-811d1e7db57b.json and https://artists.proofprofile.net/proofs/artist/d526491a-1b81-46f2-8606-811d1e7db57b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Madonna Samotności (Our Lady of Solitude)
Tańcz Mnie Po Miłości Kres (Dance Me to the End of Love)
Żona Cygana (The Gypsy Wife /Gypsy's Wife)
Żona Cygana (The Gypsy Wife / Gypsy's Wife)
Siła niewolników (Ballady Leonarda Cohena)
Meleńka, Nie Wolno Się Żegnać w Ten Sposób
Maleńka, nie wolno się żegnać w ten sposób
Maleńka, Nie Wolno Się Żegnać w Ten Sposób
Maleńka, nie wolno żegnać się w ten sposób