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 0x63318a642300cc3e3fa8724d34de05414334d68154064f44cdc9a6b85c79d121. 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/21db4cc0-f2fc-4bfa-8063-ca892d964dc2.json and https://artists.proofprofile.net/proofs/artist/21db4cc0-f2fc-4bfa-8063-ca892d964dc2.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 0xb96d3da0965f9e687b1df0b94c2b5e2ad966c1eadaf465022e9101eb5d527c51. 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/QZS1Z1628374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1074f81bc79e3e87e6e1b49702ef244785116319d6a3a37a7416fc6fa28a03bd. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/QZS1Z1634941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc561848167e3a1a6b633af047b6f8de1a266b77aada660255e397f88f5550f1b. 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/USLZJ1714960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfab1ddb6bfa32d676722960b62e5c1e9941f72f713aa463abd325ae7dd8b461c. 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/USLZJ1750641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a4de5d2c2b94d0af1cfa2d7783c2b3783dd430ba1c1972c2ff5b63d9179075b. 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/USLZJ1782837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63b76e4a2ffda10d55b9f737db6fa982d701e3b538d020abccdfcb761815af91. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/USLZJ1782847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7e458c998efe75828b8309b5e58c88989e8f16c204549e65e847ff5ccae4fb. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T12:00:27Z), 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/USLZJ1782848.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3260c78a6a1037002308575a945d8a98b7cf5d2be587ef8c8ba044a32aea919. Chain 2 (Bitcoin): anchored in block 958535 (2026-07-18T09:42:49Z), 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/QZ5FN1792235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8923bfdc3686d3ce34b2efc8f971ff7062cd9ac18c80e348dd618cb296a94b08. 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/QZ5FN1792237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x752d2a21b75e09337a1fdc05354be6d93aa9c6392847ac33375110ad13285357. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T09:11:53Z), 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/QZ5FN1792242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03d4147448da91e5805551e3a3e72ae95b2721e71407295d9d85b8d15cbe0a46. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T02:01:41Z), 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/QZ5FN1792244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f9a88a58717064358a0e0ab5e0d048662b0a945106ba1eeebd06330d53d0b0f. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QZ5FN1832001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5871e279b50294c4d71ed54af19f34570225b27657249bce646c62f3788705. 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/USLZJ1814113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1caeeac30ab09390f8abac757d76bf91869e988154cebfa5506f0eafbd5c0ace. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USLZJ1829557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6d710b2695456424b38c558182776ec690a4d34f9b3f595cd713870caa2a6ed. 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/USLZJ1895353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65459c850239101ed328cdf3dbd5b7a82393ed2808677002ed7066aa17bc23f3. Chain 2 (Bitcoin): anchored in block 958146 (2026-07-15T10:33:22Z), 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/GBWUL1812216.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40d718f85e43948d26692346fb9699a7bc5d16b6f04b8b1a1b6f26b063a33e03. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/QZ5FN1901026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a25d3ffe18046eb4308ee255a4dad760771191eeec9de532589638b15dbcad8. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/USLZJ1900590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e401b4f4c17a0f639500289065f66bf165d67fe4879fd9c059d1de827f2c00e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USLZJ1943660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6256f09e0c699bafdbd7682f976ba46256609b9e80cf2f023e6a2aec1a4a006c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/USLZJ1943674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ad0e0dac385a22718b045df8fedb9c591f2b7bb4fd9ba912ea9c0f35db3f527. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/GBWUL1901343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30ccaaed57251160df7b77e88efdbfe859f6aa0a96a492e43216ad3c579b9730. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/GBWUL1908038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x417a0ea7d395a99e6d2461e9c787a982d612353d62325985c07468f42d580ad8. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZ5FN2009003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba59f59c016d50c4385c9553b33436c6036edb017efc6a5ca434f69cc5abbab5. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZ5FN2121492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5d7f819eaf21f98e1dd1b4f40b4036ea4f887916f19247b65ab798b3379bab. 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/QZ5FN2212668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d55e0dee55746667e92be79d10f7567df145bbcf088ccc3fb2fcf4c2a73dff3. 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/GBWUL2257324.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77bd8a07d821019113b9c92c6f7bd2172a35ee6140c6168081991ddef3e9fa39. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/QZTRX2213951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96cc85768a1cd369476dadcfdf935086cff9f0ddcfafe951fdb77e1166e8303a. 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/USLZJ2336345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a4c20f1a8344758f72a684b5257f00ab3d035f1defa9936e5f5c639be35335. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/GBRKQ2399075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24e596c6a38b1bc440695ebbf491bdff956ec5dbc6cbba8cbba5e97ea0d9e521. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-16T21:48:38Z), 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/QZWV32386098.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e8bb84742090d485eee496b6ace52baddbdfe3a4368a5cb434553d7a2bd7450. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/QZZ8B2328362.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95712441dbd5f9d5d096a3a607e97465f04e13691678fa7adc2a72328f637b06. 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/QZ5FN2446571.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1e92cdc0cc05f6629e3d3de5d1eb64a8ef74e1a89ff4e0de39004f57f3e58f3. Chain 2 (Bitcoin): anchored in block 958331 (2026-07-16T21:55:37Z), 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/GBWUL2461999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf482b91c896589045e0ace8fc9c798ae96e8dbacb8067d7422ff694f5dfd14b0. 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/QM5LC1800228.
Shoot Em Up (Thomas Vent Remix) - Instrumental
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ff6ea81c7aa80e83d870a96ff0b2cad1169b80f80b16da192dc5fa7b9eb6ce4. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/QM5LC1800233.