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 0xb64101486755ac581e1e851ec637be72ff268db1dd4a4bb5c7d98aec91fff570. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/204b3d6c-f97c-436c-8ca6-b486aede00b1.json and https://artists.proofprofile.net/proofs/artist/204b3d6c-f97c-436c-8ca6-b486aede00b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Graf, R.: Die Haarstraubenden Falle des Philip Maloney, Vol. 29
Graf, R.: Die Haarstraubenden Falle des Philip Maloney, Vol. 27
Graf, R.: Die Haarstraubenden Falle des Philip Maloney, Vol. 28
Graf, R.: Die Haarstraubenden Falle des Philip Maloney, Vol. 30
Graf, R.: Die Haarstraubenden Falle des Philip Maloney, Vol. 26