Robert Gordon Prizeman (28 February 1952 – 8 September 2021)Robert Prizeman, composer and conductor who wrote the theme tune for Songs of Praise and founded the boys’ choir Libera – obituary was a Bri
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 0x8feccbc837eb14c8c22df482eac10e90b9e8402f2fac271f4b34855537237d06. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc9cb81d-f324-418a-b1dd-b19ec749602a.json and https://artists.proofprofile.net/proofs/artist/dc9cb81d-f324-418a-b1dd-b19ec749602a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x217ee0bbd2c19115c313e67428766a3476b4c23f065b1e86cc341cf4d12a8bee. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FRZ200100546.
Prizeman, Beethoven: Sacris solemnis (After Beethoven's Symphony No. 7 in A Major, Op. 92)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c159c2c216ed100f49f3bf7ece78e8255ec849a450509cb8f7414c01a171707. Chain 2 (Bitcoin): anchored in block 958988 (2026-07-21T09:08:06Z), 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/FRZ200100549.
Debussy / Arr Prizeman : Luminosa [Debussy' Claire de Lune]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b74109974688a73f303c3ab6aca07ca1b564629472a0cc6014d58bf6ee42ae3. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/FRZ200100554.
Pachelbel / Arr Prizeman : Sanctus II [Pachelbel Canon]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8498587e3b92dfcf2b55b5e5c812303d9af05839d58f93c722198460b03e3e9. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/FRZ200100557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x327dca444b299bd9119b68ccc181b094279754930669d0b1998149b60463340d. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T18:47:29Z), 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/GB5KW2002905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb03da9f8b9e346cf674f6e6db2c2bc69da7521113fe6ed66edac773a0721629c. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/GBHKE0700056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707734a0155e970358a626d3b6b1580f82c5658f65f6e85330aebcafecd234ea. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/GBHKE1000090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e645db3464bc6cc7ef0de51e824210e0f02d953e7fad4ff1fdaa984157fa8cf. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBHKE1000081.
The City of Prague Philharmonic Orchestra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6575709fab7ffa8f4ed6f78d69f85143c4d7456e103392a0827f4cf8af757f. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/GBHKE0800069.