thumb|upright=1.35|Wildfire burning in the Kaibab National Forest, Arizona, United States, in 2020. The Mangum Fire burned more than of forest. A wildfire, forest fire, or a bushfire is an unplanned
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 0x0762b0a3ecda1809c242c135ac70483d8345ec3bd39bb81df2e60c6f30da8fa6. 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/086c70b8-525b-4307-8002-01392020593d.json and https://artists.proofprofile.net/proofs/artist/086c70b8-525b-4307-8002-01392020593d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).