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 0x9e7b86d14dff8fb544af588bc02fbed750e9648643ec76138b3092f45b9891c9. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c427b21-22fe-4b3b-9269-2bd11f369593.json and https://artists.proofprofile.net/proofs/artist/3c427b21-22fe-4b3b-9269-2bd11f369593.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Gentle Thunder, Rain and Piano Volume 11
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Gentle Thunder, Rain and Piano Volume 19
Gentle Thunder, Rain and Piano Volume 10
Gentle Thunder, Rain and Piano Volume 15
Gentle Thunder, Rain and Piano Volume 13
Gentle Thunder, Rain and Piano Volume 18
Gentle Thunder, Rain and Piano Volume 12
Gentle Thunder, Rain and Piano Volume 17
Gentle Thunder, Rain and Piano Volume 14
Gentle Thunder, Rain and Piano Volume 20