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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c517efaabcd641b506e375e170e3726474edadfb1c0a4bd34c74f552a089ca. 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/c1f2f6a3-285f-497c-939b-24b02cc5737a.json and https://artists.proofprofile.net/proofs/artist/c1f2f6a3-285f-497c-939b-24b02cc5737a.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8612d7b87c220b1dd3301c7005d1a3a145473e7b486d666645418c567861d6. 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/TCAEP2026867.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595c203aa0b9846ad1ea2b0986ea2bcafb47fcf8813ebc3e1e9ccda49fe092d0. 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/US7SF2157110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d1c38c59a89c1a15f3842616199bf29e35f3b50d7a0c6081c83a9293552b07. 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/US7SF2257290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38d3b46d18f2092ffb13a3ef2a32063a3610576be9fd50d1d3ac1b0025e56640. 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/US7SF2257318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc56a3dab40aeedac7281169335e2575e812af17d3e2aa4aa8069129d2d693243. 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/USA560783336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0152194a019ed221002f47d50af88d8338c234d43308d0ca9d94012eaaa3a639. 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/USA560783337.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d11217549ca036082636b96dff061bcc618dece675153fb8d05ecfc9c75f58b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA560783338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa72517312b0c9d85ae4434b0a0a9395546baad9f83e0380d24fef4abf9576ce3. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/USA560783340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32f02dc547bfcf0dadec71847c3d1dadfc4f7f0f178a6301001d8458d3b2b77c. 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/USA560783341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19312dc7281450e1cd9d66a2679c05e9a830af4cff12a7e6a97aa90339649803. 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/USA560783343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7299ee9f29a2277ed493d80ee401a720927de28c39f8439f687667ef301f6bc0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA560783345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc32641ce3c9844a70e68ca80b1754107637e8de05086628280e61dd45324476d. 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/USA560783346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca9247a22d3679c34afeae34baec4a5fb3e120a6488440115afe519697a8cb4e. 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/USA370572366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721effe25003f83e461236168ff765e2a3e91eb4ee3b37c5994cbeb9507bcc7d. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USA370572367.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bde134ad3ec9beb72e47d7cefd95a6c909259c9f02581c56fba3ebd3ab21084. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA370572368.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x826e3ade248e33f68acb8b1feafb19d28f5c0c3bfd47e590868e4f30152bb4c6. 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/USA370572369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9604838e63d392dc860c0975b96cef9c423f517060c892bbbd2747a090bb58dd. 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/USA370572371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16d4fdc0f7499b4a3370275edef562160ffb71945411aacc28a7b22d6b02c479. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USA370572372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c34ba5c3d5767ad7495381cfd348b7c25a5772aaccf65731720115f672fd8f5. 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/USA370572375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0d6f5190257bf5354bcb017ef92dab62ce026a40f2ae165f4a577ed5563efe6. 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/GBBRL0210022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafc11d04aeb2ebaf62263c75f3b383ef3c1e0dd14298487ffb4d7de882a889c6. 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/GBBRL0210042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f7bd87aadec2ace3b832ed5d733535f4973fe53f37ecd249a2ccaaabe3ae8e3. 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/GBBRL0210052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7826205f13d5cee6273e87939073a8dd05f1a4c0973244acd2994980122172fe. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/GBBRL0210082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6143ea3e480427eea276150c14c4da749ae1f55e79bf779274926cdddf09ed84. 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/GBBRL0210102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cbfb7da1d2998fd6ead513a0b16ce21827afc823db7267606c04015396d34a6. 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/GBBRL0210112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92a492f7f2acee6f18110c1048df4650fed27638bb4ed4cbaf528f31e265fffa. 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/GBBRL0210152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d927220e59f348e9166603127006e7a83aaba7144b08fe56c9060857b2de029. 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/GBBFH9900059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3c6e9a0ee4b522ccf27b9f3ae1126f48d771d2b1e69c7d6fe5f9014c08b2954. 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/GBBFH9900060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce924d396d404937f3f11bf517cdd30716d6d632b451a9fddcea2f79dffde6b. 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/GBBFH9900042.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7fdb3216bd442fa9e32b5af79c71dc9c1add82416c2727fba7ac4cbd82b19d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/GBBFH9900062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b70616f7bb09d5e37415245758a5ebc9ae7cd8fd46fc515dc635545efa56cc8. 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/GBBFH9900063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f22f2829e31e7b1733cd8a59fc793cff771a3fa8ba78173d4aad44fca7d278. 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/GBBFH9900065.
Until You Come Back To Me - Acoustic Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43449a2eaf86459e47452f54c6e2df16ebef97a46526e8805e6ea6697d472054. 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/GBBFH0000051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d4b4f76dac563e37ba7bf3e0bc4a4fca52787ff5f5538a51ebd4c32763dae10. 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/GBBFH9900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb66a3a6d473925bfabc7a591bf20f27d7f8421198dee929a4c73ad6b2fc08e49. 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/GBBFH0000049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6a6f92e89f8ba73561e69f72ac95d5d653e987a43cd07b6b02c70bad3a8cef2. Chain 2 (Bitcoin): anchored in block 959145 (2026-07-22T15:39:05Z), 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/GBBFH9900074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x262fdfdbf2a3ff94d87d0d68d737ab7c6ef64e6edfc72b38d8832ba0b4e5bb42. 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/GBBFH0100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b7fdb3216bd442fa9e32b5af79c71dc9c1add82416c2727fba7ac4cbd82b19d. 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/GBBFH9900062.
Soul Train (Tony Deledda & Alessandro Deledda 10th Anniversary Remix)
Soul Train (Tony Deledda feat. Alessandro Deledda 10th Anniversary Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7d1c38c59a89c1a15f3842616199bf29e35f3b50d7a0c6081c83a9293552b07. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/US7SF2257290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x595c203aa0b9846ad1ea2b0986ea2bcafb47fcf8813ebc3e1e9ccda49fe092d0. 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/US7SF2157110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a8612d7b87c220b1dd3301c7005d1a3a145473e7b486d666645418c567861d6. 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/TCAEP2026867.