thumb|300px|right|DJ Dara performs at a rave in Springfield Massachusetts. DJ Dara (Darragh Guilfoyle, Brooklyn, New York) is an Irish drum and bass DJ who performs mainly in North America. He is als
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 0xf87011849c65e6f5bb4e150a395982d86a31a15d449efc06265a8e31b4178a3d. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21233f6f-dfca-41ac-b31c-00850e2dc20f.json and https://artists.proofprofile.net/proofs/artist/21233f6f-dfca-41ac-b31c-00850e2dc20f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).