thumb|A storm seen at the Baltic Sea near the island of Öland, Sweden. A storm is any disturbed state of the natural environment or the atmosphere of an astronomical body. It may be marked by signifi
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 0xeaa49b56298e56e6b6f98ea69afa02dbd82dfd1d8c281e5cd1bbefa8966e175b. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fa11f9d8-1598-4971-9d27-0b5ef0e4d344.json and https://artists.proofprofile.net/proofs/artist/fa11f9d8-1598-4971-9d27-0b5ef0e4d344.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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