thumb|Unfinished tower in Tenleytown, Washington, D.C. that was later removed as a result of complaints from the neighborhood Not in my back yard (; or, nimby), or NIMBY for short, is the opposition
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 0x6690cfad0f423ffb95acc0a237981d31e477487adc8833ec5fe889a475d6a73d. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b18b4677-af24-49a6-9b11-871c73627d11.json and https://artists.proofprofile.net/proofs/artist/b18b4677-af24-49a6-9b11-871c73627d11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).