thumb|Bunworth Banshee, Fairy Legends and Traditions of the South of Ireland, by Thomas Crofton Croker, 1825|300x300px A banshee ( ; Modern Irish , from , "woman of the fairy mound" or "fairy woman
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 0xb9952f1fba9eb12ca75709cecbbbb8b2f46c3b9242558deec62b950be6fd051d. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/60e47495-c2ae-4b61-b974-fe3db35fb1e1.json and https://artists.proofprofile.net/proofs/artist/60e47495-c2ae-4b61-b974-fe3db35fb1e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).