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 0x93b0d3a69fd7f0fbbed657a5e06c75100a95205918f2475c42a3a3b9a35339f7. 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/866948c5-ae86-43d6-9303-db6686d682de.json and https://artists.proofprofile.net/proofs/artist/866948c5-ae86-43d6-9303-db6686d682de.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 0x3c72da57dbee65a8ad0feb013396e332563107d398fb44ce5fffe052b030f0f5. 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/USAT22220079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1edde67c3a3183b5549a5c1065743cd6f7634f19cbe561bfa71ad87239b58a. 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/USAT22300018.
30 Shades (DJ Smallz 732 Jersey Club Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94f44e38fd54215d6224792b64d776ffec5dcee363eaea0d99d37c75c95d138a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/USAT22302740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb279fa673e133ac29d15cd55c55a9132a086833df6192d26c08be559ab3a0e. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USAT22307760.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc19b17bc8b4a274079186c022a81eb24856fca3b4452e60e73a142ca37df080. 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/USAT22309038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bf8d14800dad8cea072df26b22b02335c7dbd1976539d35d3570846be727d2a. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZNMX2376191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b24b2071c3b76d6666eee25e611d68f3f305a238c5c9282505d09c37981b94c. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/USAT22307035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa802324a4600faf6b7ec1857ad47e8a85e3b01cb1456c751f64dfc1b7f8ef1f. Chain 2 (Bitcoin): anchored in block 958611 (2026-07-18T21:24:44Z), 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/USAT22309572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83c14c56ebb84db1d154ccd89cc72cbab5f83fcae171fc137bb372aa326190f9. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/QZNMZ2373151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98b7174b69b5dcae69ad2bd0d2a816a34d7625b4941b682b5affc3d9bb0b76fe. 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/QZNMZ2373153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc046d14653b8f76876f788c36bfba663bdec5e7e01316468ab87dc1b13cd647. Chain 2 (Bitcoin): anchored in block 958106 (2026-07-15T05:35:13Z), 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/QZNMZ2373154.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf803418eed3cb317e72b73372c61d903b8427e277a1a0f773fe6915a8ec56004. Chain 2 (Bitcoin): anchored in block 958422 (2026-07-17T13:35:31Z), 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/QZNMZ2373158.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7be989bd797eaeb97cd89c2c612e9a68f84f669b6c281355e75a0372d5d26da. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZLL92469895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f267d523bcbfc27f693ea031676e818f0abe73a9f64648d772736d05d8b4a37. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/QZLL92469897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3639c6a359025088234be370a5889e7163bcfb26eef721e13d02defe18479c9c. 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/QZLL92469901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2498444cc7e5bb3c30ef924e1b4a25ec602fd3a47504d703af5dc3f79bf06d4b. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZLL92470807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa862e601d43e2c9755b62db67ad76225ccb435e86f3d41e8c6c26f1de0156b2e. 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/QZLL92470808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4284156abbac30b75c8c0b3b633de34237e26bf59b372e9d6219da2ece2c3a3d. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZLL92470809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1ca5997a444012f99b5ea863bda6620e5a0b29131c4d4508aede9abf4886b10. 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/QZNMV2415816.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7757af99ce12dff89dea8b88ebc184517b07d3260b2651be6a45c866284931a0. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/QZNMV2415817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x441804678add73e8887ae14ece84c45d54c63ca704b2cd29e2b8b71312fb5a60. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:53:40Z), 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/QZNMV2415824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5322fc16e1912294b28dac3943bead41496c716004e47ce78132ac1df5cb0f73. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZNMV2524427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302052590ecd58ca17a3feff3f6f2cccaaf5c448397d102f46fee002bab4a397. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/QZNMV2524428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe460caa2cd5f517012db5932c3a71430b0ea7128bc32ea5500deeb5d7b4f7a31. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T16:23:31Z), 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/QZNMV2524429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb808191c70d336a88deca264f90e7340ec8cf1cfafcec8045699275c31eb289b. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZNMV2524430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd244b7f451a56a5af1dbb40c7156c6aa8025eb2d5c8ba078b033a2b24bb61e91. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:06:09Z), 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/QZNMV2524431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcb5a15ab45f005eec4570283817965a6eb07619b51254b4954d014ed6282a77. Chain 2 (Bitcoin): anchored in block 958474 (2026-07-18T00:59:09Z), 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/QZNMV2524432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383dbc90022610eb5c8e95da917e151d6207b6170cfd671505df6df880d38092. 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/USA2P2358639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8841c32af229e1fee3449fc460be7d39664641965f4f8ce3e955b5041839f65. 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/QZTBF2343466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78cb2ee5ecee35592c2e799395d19961dfe852e109ce7e55646b987ac3e130d0. 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/QT3F42461734.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d7d2cf4768bf8757b7c65989e4226f7a7519625e0696c02b4cf16e060d65745. 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/QT2VB2435413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d813e7249c856a2b08190ccde409e0880135b3ab982e5d9541a7b5a3419761. 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/QZJ842404225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa00147aba1736b897ce566b5d63ba69efbbdaf0380fb71f33bd7cf2ce49a9ee. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/QZJ842404229.
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 0xf450946e4b497e35e0974daddfffdd3b9e1f1c4df3a66cb22d116704231ca194. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZJ842404230.