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 0xd3037627a84013c530bf5764c0b9d7bac6e89c9f449e0a6ca2d6a720fbc52d98. 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/f1c45085-9b36-4381-a3ad-93c39141ff23.json and https://artists.proofprofile.net/proofs/artist/f1c45085-9b36-4381-a3ad-93c39141ff23.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 0x931ea9a80b3cac982714c5730f1ebe2817ee68977122d82d126f87a1ead739f8. 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/QZNMU2092428.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3374fda79a2847c6e1c9610923689b3070f32daa10fe001852482311b2aab35e. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/QZFZ22477306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b8f1228ac3edd9d9a699620ff2886492cb7649a126dafeab551b5033e5b205. 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/QZFZ22477307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf238f2af3b4e38818141ba7c6874a374e754147ec152960227e072035e9c0f3. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZFZ22477312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5033deb1d3f5e0af48f546dadb447ba392e58314753ca54da90f1d6092e56e. Chain 2 (Bitcoin): anchored in block 957756 (2026-07-12T21:36:27Z), 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/QZFZ22477317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57a98b42d43734590dfd2a3227f0c26b498f9568e0f9a221688d02dc0419a185. 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/QZZ7Q2488384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb3d33d9729feab321867be98049bb9e7b9254ba978d2f8abd3bb4f187a4ca78. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/QZZ7Q2488385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4398740dc8a1239c4673e422d235a4b9054bb746883ed6a4fe66cb515a766f2. Chain 2 (Bitcoin): anchored in block 958908 (2026-07-20T18:10:05Z), 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/QZZ7Q2488386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b045e2df2f1c4ff51bc83da02bd34092e826052baaccfc722f325f6f7ae63b. 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/QZZ7Q2488387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d654aaf39887401a8fb3b1fa12d81ec861f6545e3018f4a5b28ab5bc06a5ee7. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QZZ7Q2488388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56dcd6f2f879d0b2c60e72f8d5aec3bd251e58b61197933eaed50cb1ca508a16. 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/QZZ7Q2488389.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f1c9404ba8aa6be3621b736563bf21643e80eec3544a54f567b945b34ef2c88. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QZZ7Q2488390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd722a505e1a9237c7386cd7838491aba18ddf32f5705e07b7ffa18c47eb13299. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T20:09:46Z), 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/QZZ7Q2488391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884fe132858bb6b9c352f6041aa259ce537a920a22cacf32600e7d4b83d8a712. 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/QZFZ22477303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d733f0dc251d2667cdedf948ace890d309f0624dcb4fbf3e303cc4737958209. 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/QZFZ22477304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d229a6de9a4f40382a0a732bc6dddef86d69d799d65b938a7785059be4bd06. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/QZFZ22477305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3374fda79a2847c6e1c9610923689b3070f32daa10fe001852482311b2aab35e. 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/QZFZ22477306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12b8f1228ac3edd9d9a699620ff2886492cb7649a126dafeab551b5033e5b205. 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/QZFZ22477307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c3654dbc384c0b035660ced1227bd789ca69e726aebb558573e10786e5b461b. 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/QZFZ22477308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5066264afa31bd9c9a9e9797c421f182dcfd06c406e29f729e96971aaf459ccd. 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/QZFZ22477309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf238f2af3b4e38818141ba7c6874a374e754147ec152960227e072035e9c0f3. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/QZFZ22477312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b5033deb1d3f5e0af48f546dadb447ba392e58314753ca54da90f1d6092e56e. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/QZFZ22477317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76b88d61d70541979b19bf041fec6d8fcb6c350c757985d6049378203587795a. 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/QZFZ22477318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4d5d107b7cd024ba9bcb4c6820aeec6864cee677c58230a2ec35740a76c8689. 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/QZDA82378524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x777d4871236670fb1d204378ffe5932ac7bfea21621bf426a510f296cf767f8d. 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/QZES72310887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52ae30e96f43e594a36866026f0eda6d9a511025e18d70f7d212f48c8a540512. 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/QZHN72546228.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89b91a0e26c5329e1c46854dedf42fbd8b78cdb65412cc3cbfa9bbf8c93d0edd. 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/QZHN72546229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf560b7c3a761cf9fbbb99eee3bf4e3c6ffaf0bd260fae4c1052472ab4854533c. 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/QZHN72546232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9bf1dbad9ec2add3401fb8cd9b8813b22fdbf45fd14b953143b9619f5ee9dce1. 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/QZHN72546233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e00aed8f0f6b9981da984bd25aac9eff35cee18feef035a93b53c985579f9f. 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/QZHNA1956793.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b7e41a351178ec1c2d51bc2892ab3f404276d9bc34f9fd1632d59c9f92c364. 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/QZFZ21946447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce1392767832fc45998f337e302eab87a738f2a2b8a0505348c7e9baa69ab4a2. 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/QZSYP2475146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf79fbe3e9f2ed450c1132a7d29bf8618cd397eaae86cf9aaf86530a91fd13c. 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/TCADA1711306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x943282468764b2bbb0f33a51f82f62aa6fb971729dd9c7f10063514b2329a0ef. 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/TCABY1412907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dde6fa6040ec37181f1d7238fb2ddd077c3dc8a0535c29161a498a0a769fc2e. 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/USDY41530672.
The Gat, Pt. 2 (feat. Prince Dre, Jb Binladen & L'a Capone)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0074c8553de15d29d8f377075edae84674a988bee34dc4adad24e4c23284e72a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-21T09:12:52Z), 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/USDY41530677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10931aceba9afe397ff687130df15fbe0e60c5e42a6fbc10d4a8ecd87f59965. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/QM6MZ2214340.
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