Friends Like These is a British game show that was broadcast on BBC One first as a pilot on 6 November 1999 and then as a full series from 12 February 2000 until 20 September 2003. It was presented by
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 0x1f4c08ff475bda835c5fab089257994b46a638d77a3e552d174ac2b2476d73cf. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b4993c9-9b83-4f69-9348-7a0daf4a09b0.json and https://artists.proofprofile.net/proofs/artist/1b4993c9-9b83-4f69-9348-7a0daf4a09b0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).