Edward Cawthorne, known by the stage name Tenderlonious, is a British jazz saxophonist and flautist. He is bandleader of various jazz bands including Ruby Rushton. Cawthorne founded the record label 2
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 0x22fc5aa9d947cdf94d1b7590207de28b25775e4e15af467edc14c4dfee46a06e. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9603d5e2-2411-4842-b773-6d174b4c0451.json and https://artists.proofprofile.net/proofs/artist/9603d5e2-2411-4842-b773-6d174b4c0451.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 0x3c5b9050d35d88ba58f0b7f5543b355978a6a282855d3e2322fa26f9ad1736a3. 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/UKCFF1700096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53416cc7f6628f66f7433ad05ef9641e26ab4f7a2fd1e55c1730813cd2f4e2f2. 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/UKCFF1700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9de6b9d54f90a9de769f3a42bd0a81a000b492e781af8efe6c1f73f98c40ec9. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:01:41Z), 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/UKCFF1700099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x732837d64a9b7e29518306b8bba74093ddef9e0e8bb2a695f86f1368a49a7168. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:38:44Z), 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/UKCFF1700100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b372be883e73e85c70218aa2658dd8227098af3a0386b1ef937a7fbb0b4fe72. 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/UKCFF1700101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b1ba250236b77889c59c29af298323f401d9504253cc1d45153c705210ccf9. 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/UKCFF1700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x457c3492029c65899ac9635bf5fc3fffbac9d93c451e56e108876e8ed0b4df52. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/UKCFF1700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac22dc7ee4dd6a8f6a0c880c0b23f56491f4de894c14d260ab9a4a6f98ab3add. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/UKCFF2000163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4332d6aacb4608fcb082e21ad2b6dc3e18c835b06794a288535952a450b28978. 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/UKCFF2000175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a70ab838ba06b1129636667f20631e922ddf6d2832796d9cf5f0070571206e1. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T06:27:23Z), 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/UKCFF2000179.
Ragas from Lahore: Improvisations with Jaubi
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdd32c68e554e92720267df963468bb34c5f99cc6e80feeac49fa22b3dbf7d54. 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/UKCFF2000168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc905a702a5fd622a26a9b58ad49c89f3069e94177be90ab1f967c55b85620b5d. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/UKCFF2100201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe8a7faa685413f671a30315f6c458b216634a14719616e4ff1adf576d909e42. 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/UKCFF2100205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4734aff512e5e89d05499572c1bd3163afdb5fe4437d3bbb4bd976c9a7ea6bf. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/UKCFF2100207.
Soul Jazz Records presents KALEIDOSCOPE - New Spirits Known and Unknown
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53416cc7f6628f66f7433ad05ef9641e26ab4f7a2fd1e55c1730813cd2f4e2f2. 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/UKCFF1700098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1505644aa839d533490696df5bd21b9bf675b3f6260e2a85f535dc3aebcdc02a. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCFB2000139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5055620d30e0188b101644948af695db1e5c427a4c93d18fa8acc841df1d637. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCFB2000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2617815cd009d202e23ca78ebe50f8f9c24f60b4dca10b8e219bbf748468a6. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/GBCFB2000144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395e577ffde6bf0ee129185655a87c3b3d2ba26af11eed3309f00f678543a361. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/GBCFB2000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395e577ffde6bf0ee129185655a87c3b3d2ba26af11eed3309f00f678543a361. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/GBCFB2000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5055620d30e0188b101644948af695db1e5c427a4c93d18fa8acc841df1d637. 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/GBCFB2000140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x395e577ffde6bf0ee129185655a87c3b3d2ba26af11eed3309f00f678543a361. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/GBCFB2000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1505644aa839d533490696df5bd21b9bf675b3f6260e2a85f535dc3aebcdc02a. 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/GBCFB2000139.