Courtney Pine, (born 18 March 1964) is a British jazz musician, who was the principal founder of the black British band the Jazz Warriors in the 1980s. Although known primarily for his saxophone play
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 0xdc369042243ed71a7cb117ae9975af7b3daffcec9d1fcd40d784f873b766a6a6. 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/2d7fdef1-a6cf-41f6-8aac-bc9aa8c7773b.json and https://artists.proofprofile.net/proofs/artist/2d7fdef1-a6cf-41f6-8aac-bc9aa8c7773b.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 0x1b66702f76c005ed4d51fbc1e6ef06bb781a2a960a86ccd28a6abc87f7a7035e. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/GBAAN8600022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d4dc339ea7bfcd7bc120e1f4931747a91f3e5f9e0b51afae41e87b784e09b83. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/USPR39507182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaf18775fc2111d2320aacc242c30a52e17d05635dfeca21ec38f3c9838bfa90. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/USPR39507183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede7528c3db421517baf12b8272e6258a8b2d88b81980f494f1186c80c6cde4a. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USPR39507191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x576c8343930bb6fd5c9a34059c9f69c843f99de4671992cac7a12c48234d8301. 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/USGR10000120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73f40907691e163ae54bbb1ed04763521aa261114dbdb7b105fa30915f99f45. 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/USGR10000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4152c2fb097c76b86648889d88d400f402b35bd240bb9d668f44fe2474022899. 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/USGR10000128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2788d17628c78e73d1f2e3e54977d7565154a6d4d2c81d90d5478829b1f2dbf7. 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/USGR10000131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f230602e5eb8f5ea29eaf04024bf3fd5dd36745efb892b5e81a942054b6653e. 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/USUM71302719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fb3594a7dd11ba7744d1b457850f7c05f98edf2c81c76fff2ab1757efe8d745. 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/USGR10000138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe73f40907691e163ae54bbb1ed04763521aa261114dbdb7b105fa30915f99f45. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USGR10000121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x629ac373e9d1b2614dade1b32827739c258989643f5bce68db38884943dcf480. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USGR10000130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa748673da11e8fa2b50364c5a6b82999c1ce215973430da3b3d0b9c0c5e0bfc6. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:44:38Z), 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/USGR10000135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f30eaea879c7d5ab01a699926cfd4f3030c1b7297b1353876a070260be3c838. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/USGR10000136.
Transition in Tradition (En Hommage à Sidney Bechet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf63fec3733f0982b8072791ad957ccc62bfd4706a06e952fd6fca3a01aa26a39. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/GBJSH1722009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97716f1defc238260562ce647721b95b01c2d087fcf6423ba9699c094852a944. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/GBJSH1722010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f2c155b59b3222a2cb0817ef626cf08d8f0e40faf030ef117ea79e4c4838d. 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/USVI29300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27898b42b37ac99d19ef1377e01a9d76cfee2dd0d53087c609847f25b6679c1. Chain 2 (Bitcoin): anchored in block 957032 (2026-07-07T11:43:09Z), 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/USVI29501067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed449fd0b80cfe8398fee2ad922001e9c69930ff9e31d50ba36504ec96ecb8b2. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/USUG10600207.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9ad4c29bf30509c7ca2ed0edb7a77d9a6ccd75bae25e96d85e51feb5d06b84a. 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/GBBET0702889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f2c155b59b3222a2cb0817ef626cf08d8f0e40faf030ef117ea79e4c4838d. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USVI29300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f2c155b59b3222a2cb0817ef626cf08d8f0e40faf030ef117ea79e4c4838d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/USVI29300129.
Guru's Jazzmatazz, Vol. 1 (Deluxe Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd3f2c155b59b3222a2cb0817ef626cf08d8f0e40faf030ef117ea79e4c4838d. Chain 2 (Bitcoin): anchored in block 957056 (2026-07-07T15:15:30Z), 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/USVI29300129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27898b42b37ac99d19ef1377e01a9d76cfee2dd0d53087c609847f25b6679c1. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/USVI29501067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cdb5a6a233709318b1678690055bd3dff839d294bdac98103e119f5e3da21c3. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBPNL0600010.