1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7606f9a3b9b817ebf1ac4c4898f3022ccd1ae9428bec35095ef99aca546f78. Chain 2 (Bitcoin): anchored in block 953879 (2026-06-16T02:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/093fb79e-c807-44ee-8231-84b3bb54cdf7.json and https://artists.proofprofile.net/proofs/artist/093fb79e-c807-44ee-8231-84b3bb54cdf7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Constant Piano Sonata for Two Pianos, Four Hands
Hope for Planet Sea (for Flute, Marimba, Piano, And Cello)
Four Days in New York (for Flute, Bassoon, Vibraphone, and Xylophone)