Sebastian Cox OBE (born in 1956), is the Head of the Air Historical Branch (AHB) of the Royal Air Force, a specialist archive and history unit based at RAF Northolt, Middlesex, which seeks to maintain
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 0x10706ca32a895b63f854d87ca8733bb827c75b37f2437efa1e7af0892b90657e. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f06c5d3f-a35c-4dce-86d7-45ce01ecffc4.json and https://artists.proofprofile.net/proofs/artist/f06c5d3f-a35c-4dce-86d7-45ce01ecffc4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vespro della Beata Vergine, "composti sopra canti fermi": Psalm 112, "Laudate pueri dominum"
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 0x671f19a55df63e27824758fd787816c3b524b032589f01d36a89f8260fbcd410. 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/GBH2A1040004.
Vespro della Beata Vergine, "composti sopra canti fermi": Concerto: Pulchra es
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32d2e0f7bce6653706abe7dd117a7c1a3e72a575c98f334581b2b9f108d85974. 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/GBH2A1040005.
Vespro della Beata Vergine, "composti sopra canti fermi": Psalm 121, "Laetatus sum"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9edf89fcb9b4f2a3e57bf7c66d2a862255b29471a843715dca33a5677278be. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBH2A1040006.
Vespro della Beata Vergine, "composti sopra canti fermi": Concerto: Duo seraphim
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee8991ed3210f404930106ee7f8c5135f08dc0adeed21f1a2172b75658971dd7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBH2A1040007.
Vespro della Beata Vergine, "composti sopra canti fermi": Deus in adiutorium
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc05b60484759477819cf9892565ae079d64d412fcf963ed65a362ac10da7fbb8. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/GBH2A1040001.
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
Vespro della Beata Vergine, "composti sopra canti fermi": Psalm 109, "Dixit dominus"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81854932e0353bfe5e151252f5d85957ca84b2080b38434be8bcca038d289e37. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/GBH2A1040002.
Vespro della Beata Vergine, "composti sopra canti fermi": Concerto: Nigra sum
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5e4dc1d009fbcd18fde22b8167ea15c298271e2474ea15a1c4dd50982d15663. Chain 2 (Bitcoin): anchored in block 960352 (2026-07-31T05:48:30Z), 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/GBH2A1040003.
Vespro della Beata Vergine, "composti sopra canti fermi": Psalm 126, "Nisi Dominus"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f2b4d9289942d05024c5046cecab922d5cbd56ee64a3b018d4fda55da95f3c1. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/GBH2A1040008.
Vespro della Beata Vergine, "composti sopra canti fermi": Magnificat: Quia fecit mihi magna
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeaeaae820cdc05b030d64aa9e36b6d8ee6d5236a828cc86a2a73e1f02bc65dd. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/GBH2A1040016.