thumb|right|First American edition of Beckett's translation from the French of his radio play, Cascando. New York: Grove Press, 1968 Cascando is a radio play by Samuel Beckett. It was written in Fren
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 0x653e82075daaa501f480f23f254046f0106bb94c86ac0b728cbd59de76d3c424. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a256016a-0fe8-46b3-be07-f099f7764d3a.json and https://artists.proofprofile.net/proofs/artist/a256016a-0fe8-46b3-be07-f099f7764d3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).