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 0x7e609159f2863503ab9b71311a90ba59fc3a2ea1c5ff46dcf07f182ef3f2c7e1. 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/afe4ce2c-f017-4a49-b745-f8e9822a2c0f.json and https://artists.proofprofile.net/proofs/artist/afe4ce2c-f017-4a49-b745-f8e9822a2c0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
* Atonement's Serenade: Harmonies that Mend the Ties of Past Actions *