Brian Matthew (17 September 1928 – 8 April 2017) was an English broadcaster who worked for the BBC for 63 years from 1954 until 2017. He was the host of Saturday Club, among other programmes, and bega
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x377d475ff48a806e31ec73a76df29f222f96392b56d4eb0a00d625ac7fad5b4e. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e05fcaec-3a1e-4278-bfdc-774bc42f617d.json and https://artists.proofprofile.net/proofs/artist/e05fcaec-3a1e-4278-bfdc-774bc42f617d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
John - Pop Profile - Live At The BBC / 30th November, 1965
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65b7d6ae746a2b330c27c1339aff0b86e7ab1411a90870d73b8b2b3f5883b09d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71306156.
George - Pop Profile - Live At The BBC / 30th November, 1965
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836aab8db9b51efdb6cc34408f986a9e9f4a4edf16765fe4d955f802c6ddd9f0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71306144.
Brian Bathtubes - Live At The BBC For "Saturday Club" / 21st December, 1963
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24aa7e270306d3a120deb66737473750c888d71c7ee2036f1df47bccf7c30ccc. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71305868.
If I Wasn’t In America - Live At The BBC For "Saturday Club" / 15th February, 1964
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20015eb03f319732c3422bf5177f3f46d7f55831aef6d3915ffa1b6b900122b4. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71306155.
Lift Lid Again - Live At The BBC For "Saturday Club" / 24th August, 1963
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fda07d926571e1126b22214d3cabe1e3296f53eafaecfcff0e8a852ace4045. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBUM71306160.