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 0x674fbabba3ef264639f596fa058c42b81dd51c03721a8c894ac851c83c1687b2. 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/63c495a6-4192-4c5c-8301-7d0b533fea96.json and https://artists.proofprofile.net/proofs/artist/63c495a6-4192-4c5c-8301-7d0b533fea96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Songs Without Words, Op. 30: VI. La Chanson du Gondolier
Préludes, Livre 1, CD 125: VIII. La fille aux cheveux de lin
The Heart asks for pleasure First - The Piano
12 Valses and Finale, Op. 8: Valse in D Minor