thumb|Entering Bridgehill Bridgehill is an area of Consett in County Durham, England. It is situated near Benfieldside, Blackhill, Shotley Grove, and the River Derwent. References External links Ca
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 0xb7e668d7c1b42161d0d6e75371b99b07b0ed2b4e0f3a24ae276654f2bd81bc39. Chain 2 (Bitcoin): anchored in block 953807 (2026-06-15T16:39:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5096a16-7e53-4a18-b5e6-3491a621e083.json and https://artists.proofprofile.net/proofs/artist/e5096a16-7e53-4a18-b5e6-3491a621e083.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).