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 0x99efa87e45a3544df086f2159b76415dcc47a98d84248adc5a68306857ab5313. 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/5ef14f18-d21a-41af-b18e-e79e0bdc9b6e.json and https://artists.proofprofile.net/proofs/artist/5ef14f18-d21a-41af-b18e-e79e0bdc9b6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tres Dei Matris Symphoniae: I. Introitus
Tres Dei Matris Symphoniae: II. Symphonia prima: Angelus Domini
Tres Dei Matris Symphoniae: III. Symphonia secunda: Bethleem
Tres Dei Matris Symphoniae: IV. Symphonia tertia: Mater Dolorosa
Cantata No. 4: No. 3, Evening, Cherry Orchard
Cantata No. 4: No. 4, My Soul Swathed in Celestial Azure
Moments of Poetry and Music: No. 1, Keine Stimme
Moments of Poetry and Music: No. 2, Melody, Post scriptum
Čiurlionis: The Sea, In the Forest & Kęstutis