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 0xb36d6fe2cf8bb49aa2c161b091e0de66ebfb8551b6e5ef2e8a4c65e9ac71f8db. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/939a0a55-e7cb-45f7-a0b7-e8b47abbb608.json and https://artists.proofprofile.net/proofs/artist/939a0a55-e7cb-45f7-a0b7-e8b47abbb608.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Light Is Dim - Hommage aux frères Pigeon
Ugglan - Farväl till Skurup - Lasses jig
Light Is Dim / Hommage aux frères pigeon