1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x66620e36713beac30db91e4c67bc96144b3417d9dbd461a850dac1820997ecde. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8e70210a-78ab-4f56-b0ce-1bc470f16ecd.json and https://artists.proofprofile.net/proofs/artist/8e70210a-78ab-4f56-b0ce-1bc470f16ecd.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 → block OTSBitcoinBlock must exist at that height 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 0xf1431ce6aaef953a0e3be15a8ab34e583d095835cc0739bab324d1187e2c0e6e. 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/GBAYE6500469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8d91b1524f7803b2c29743e2d5895199aac61533a2ef2689ecaa1e1737a9a6c. 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/USLA19200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x710829bce487b33b3216a279f7f9058e0fad92bd98b965438e8e182c96986221. 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/GBAYE6000063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3eb6c2ea3c4498d2bd45d5995c51164846f7f4b8132a09ecc7bf52205142bb6f. 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/GBAYE6800081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e7d1fcefcc94511d2a83a4c09e491fa80c317883e2c99a7cf8cdd3fdd9db716. 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/USEM39100180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d2d6fe39e55acc8f33f803d093d8f0d45596ba6cea16d20db938c5f900c2ab5. 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/USEM38700047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6cb91fa04e695f27ae906da3353294755557f38a509a88c8644c85b053c0978. 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/GBAYE6400171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d151f787226b1509872d23e9314f942a84c0c596ee670359cea4ab0991b7be3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USLA18800001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6dd46cb7828e76cbe8153f43e843b8be27d4b84fa449724aa4bf326ef957f7e4. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USCA28600199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae91c0764453e10dc8e24091760282e8254c8dddf50ccbd55bcb812442bfc82. 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/USCA28500400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b4c0db30bcda8d74c0f4a3123aa3c1e806b8f867030dddd5267f403dc538fe. 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/GBAYE0300154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4ca28f332b62526b2a16fb1253e83c1f8a22a73d805c8ce7645387a307bf435. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USEM38700055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3386f77d1d6faf98b20a89c95125c0b9f54b12174443202fbcde8043da48692c. 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/GBAYE6100147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde4c71b59578b454e6bee8bca861a331ab8c319d8d42128bb2fe06207436a5ba. 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/GBAYE6400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20f4b0e9f99d990194f8b7a5ab590e6e6673427f3423957a9f9305704345debe. 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/GBAYE6000057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b22e451e6d64ebd030ef48f48986aa15d7aa78de2e0d081960216bd7e2e8849. 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/GBAYE6300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060fbcf56df03bbcc2bd07ec8168056ef128fa9407ef529934658f22d9f2475c. 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/USCA26400131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0764e61a5832db87511fe2612c8fe888f23dab54e00d4aa10f96704ec99639e7. 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/GBAYE5900256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x927483095ad894fc0da1b24355e8c93d1c25c80d802b179eb1d1988757ddf204. 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/GB01A0800374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff950db2037f710f30de4b5e462285cf474fc5a5bfe7f7a752195554ea6c92c4. 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/GBAYE6100146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97f79136b8204aa847c1f05c4512bbbee45c97e6e040eeb78f5c0b970477b6d0. 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/GBAYE6300231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x488d8b8f7026ed7cdd7bfb5bb10246d0f3e7dbdd230ae21372b8d14d388a9072. 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/GBAYE6200144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb53a6a3c98cd7e5f58b4bc3d45c3621d855415732e7fc7c488305e97f7b8ad8. 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/GBAYE6800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79d1d20188746a265830f3860cd1372c410f8a232a1f90f3a82b9d28b800ba89. 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/USCA28800313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef918863325800481e713ad99e8a1518b7d2b44f6ebc753f7c687280efb7a7eb. 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/GBAYE6300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f19409eb36fc43ca59cb73e9592bbe08614a59ca4881021172af443ba375505. 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/GBAYE6200142.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36133eba940a07c8cd6b757be375c8f7640ce7b0577b07735abc5ad6a9a56640. 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/GBAYE6400099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb20206ef573876ed3f4c31b8c2742acc28f6192629425c0a7805c347a2039787. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/USEM38700043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95a94bcd009d3d5ac6bf825c10f722d0b1e49ab1db9e5922395dfe7a72f26665. 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/GBAYE6400098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a8ff6a8664cc8b26f05ed353cef1941e1666fc4b3993c6ccf300a865f449ba2. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/USEM38700032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc575cdee8bf4b4bc82d8b5703c74db99382f3dda5ee6be52737c75b323d2a57b. 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/GBAYE6500061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf48f6145eef2b1ba3a116ef4f79bb3ad2fbb78c6e6af383e9950fc9adfa2762. 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/USEM39400161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ebf815f60c6db771603af272b0a4542c9bfb63da27118048a899765640aab31. 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/GBAYK7200004.
Drink up Thy Zider - Live at the Royal Oak, Nailsea, Zummerzet
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6edeb3361a3fe9bb80a7d940f4a21304d8a2aacbe1a47ecb4f11145a87c81e. 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/GBAYE6700354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13043fcffe20a94752a91fade1dc0d03f06f575f4bd1ee4cfbcc0d7353af232c. 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/GBAYE6800147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b47c6890c69200d0347e8b5459a566a3a582b2b844dac4d6195572c0ecad07b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/GBAYE6700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83354d2d20db08a4e96b5d9f4500e62aeb71d41250b3181d8e2b0c2a55e991a7. 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/GBAYE6700355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaafd7bb52f9956eddcbc587407d51b84fe3c13b42b05ee743d432801eff07b6b. 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/GBAYE6800384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf20ba26cd30bd839663b899c31aebae45575680ada6eb9ac92b8fc56c1f35e4a. 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/USCA26800138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5810866ae78f0e828b452a53efa227690a84c54486cc12f6279531ef796da3b4. 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/GBAYE6300104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa719d0c53a47fce70467516a7553d5753974023f2c3528d0c6b623ebf92f02d7. 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/GBAYE6200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b51cf5c7d1f887c7f98364697730aa4c92d4c598a8756eee94a2c7bc1ef3c8. Chain 2 (Bitcoin): anchored in block 957067 (2026-07-07T16:54:37Z), 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/GBAYE6100205.