Pierre Bensusan (born 30 October 1957) is a French-Algerian acoustic guitarist. As Sephardic Jews, his family came from Spain, Spanish Morocco, and French Algeria. His music has been characterized as
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 0x48a2b39f6314b3bcfcdfa16ca137b6ab582f9148136dafaac55e362d317392c4. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f0abe6da-e55d-4770-b2ec-de996d7c78a5.json and https://artists.proofprofile.net/proofs/artist/f0abe6da-e55d-4770-b2ec-de996d7c78a5.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc2d0c6904f6421567c7d4004f628ec1f01d9fedf1ee9986ebc470692bb8985. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR5U00900079.
La Hora Espanola (To Juan Miguel Carmona)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ba78814a908157e96462590c5a2794e8f615c770de12dd7637959448c5c2b11. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:00:42Z), 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/FR5U00900084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fedc78c289a55846654ac39de4efe13a3e816326cd158946f0f8d22b2fe8803. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FR5U00900086.
En route from Scarborough (To John Renbourn)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d733fa845a531be07dde74e035f5b660aa8eaca30561681d9d4abc069854bf3. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/FR5U00900087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7bf9782d4a900ad6e187b2dae766dcf2980f8612f421d02a3da439dd2bf3bf. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/USFN10524413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386fe2b6db360dfad4dfef4a4fedf42ba33978e418f5b52f74f90ec66bab7253. Chain 2 (Bitcoin): anchored in block 958913 (2026-07-20T19:34:48Z), 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/FR5U00900080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76a5f6cc34433cc37b9279671e288ededd72fd4fa24e0c10710d1c5817781b7. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR5U00900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb9ff3b40e0b228b16a1b9abd54f4c62be0d38c1dfd59f3b3a77e94be336997. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FR5U00900067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a311b18d8ac6e1204c6ab9190c3e5414994d1e576d5177529023e320570b5ed. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:01:02Z), 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/FR5U00900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6e91a3d91e2f0fb2a82817c3049fcdf69f271cc97e3b5489b0cf1809bb0b6b9. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/FR5U00900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe624ba43b601d409fe70911860a55992368cd3717e0e813f06df86422ea107bc. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/FR5U00900001.
Fiona Ritchie Presents the Best of Thistle & Shamrock Volume 1
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7767594e08d42e53d21f59457db47cbaf9c32a680634b3d84c24bde7e511614. 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/USAKS0501754.
Girls Gotta Dance! - Rhythms To Excite the Muscles, Symmetry To Stimulate the Brain, Melodies To Delight the Heart
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bc40e9ebfae71f2c089f62969d6fc5e910c438a885af97e15f5d80b59775237. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USASX0862422.
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
Guitar Recital: Tennant, Scott - Krouse, I. / York, A. / Bogdanovic, D. / Duarte, J. / Head, B. / Ruiz-Pipo, A. / Mompou, F. / Dowland, J.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc802b90af74dffb21960d20637ba10b558b6428943c9e64c91fa00dda810b77f. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/USASX0820706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a4f9cd85e5d3ad06c66065358f8e273a688d83451497f279bb567d94c1ffeb. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/USASX0820707.