Two Boroughs Radio (known on air as 2BR) was an Independent Local Radio station serving East and Central Lancashire, England. It was owned and operated by Global and broadcast from studios at Clayton-
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 0x3116b0951ea207cb898b11f7730ac268c855768101ee8af0c0c04615d90e513f. 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/478b0d19-b719-4994-9459-cfa1edc1b8d7.json and https://artists.proofprofile.net/proofs/artist/478b0d19-b719-4994-9459-cfa1edc1b8d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).