Michael Frayn, FRSL (; born 8 September 1933) is an English playwright and novelist. He is best known as the author of the farce Noises Off"Michael Frayn British author and translator", Encyclopædia B
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 0x34f36d0d5fe80a8b039711cfcd81ae41970052f2ffa7cd932c632e33f603faff. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2502cb02-0a72-42ce-bc74-86885a8afd4a.json and https://artists.proofprofile.net/proofs/artist/2502cb02-0a72-42ce-bc74-86885a8afd4a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Copenhagen: The Complete Play (Original Broadway Cast Recording)