The Most Reverend Justin Welby, Archbishop Of Canterbury
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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 0xd44b685d398b2b8e5eb3a8ca68bc075ae1b8f6285b5175c55c8ef589c9468bed. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0252d39-84a4-4112-9ef3-122fdeb3edca.json and https://artists.proofprofile.net/proofs/artist/d0252d39-84a4-4112-9ef3-122fdeb3edca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Official Album of The Coronation: The Complete Recording
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36dc8260c86a5387852a21ff3a4d3ae7be721ce6d5d80dcce2e90f44746edc74. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-22T01:10:42Z), 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/GBUM72304442.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x849a2a0ebe58f73796e3070d5aea43c2dd643463db9c7175a544425d3aa7a8f2. 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/GBUM72304428.
Fanfare Trumpeters Of The Royal Air Force
The Right Honourable Lady Elish Angiolini LT DBE KC
The Right Honourable The Baroness Amos LG CH
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2561a99de72112170ad9ff1272d63a0a151eb830c8fa2e75071b9ade1b2e28b. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBUM72303880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fe3f4237e2562fb1ee9da7ee79f38db271fa3acd391347c7fdafe1738e38c54. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBUM72304460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e9ae6fb655e2b1d5f0c96c26d185cfd6178b2265a45a1de000b5e41cb33a4b4. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBUM71802102.
The Investiture and Give The King Your Judgements (Byzantine Chant)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfacbc0e2f1f865d9553a9388bfe1241ff21c1072a7b160aed60e24b42102eeb9. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/GBUM72303914.
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
The Most Reverend and Right Honourable Stephen Cottrell
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd410c70069490ca6066094c69c04a680e7e073c84e347492e0792e2fed70e769. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/GBUM72304443.
The Enthroning And The Homage (Homage Fanfare)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb9a6cc4270f3735be6091bf3aad9514dda100a6432afd29544f2456c0534e77. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/GBUM72303941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x824e159567abb3a0fe5232e57af93ea614dc47f28b3d03b7a76fb1e4fbba734e. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/GBUM72304432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3181c5ddc6b73226001c307a1966083a85a48c5f8603af7fc2d25ed75588512b. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/GBUM71802103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a55b1ac2c3fa7e2a0217dc012b83f11d4e25eb9c376b14a1ce916e0ac7185fe. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/GBUM71801964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a2662fecbbc0dd7739c5aa87c45bcdf48c591a70e876d8ba3be6bded00008e2. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/GBUM71802106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fb4b80cc1fbc92dc666b12ad341bb6dee5196149e2292d2165c262906be91c8. Chain 2 (Bitcoin): anchored in block 960404 (2026-07-31T13:06:57Z), 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/GBUM71802107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48cd8bd08d853b97338903b304b5fd9423a892a3f9e596df24fd3df7005cc315. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/GBUM71801965.