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 0x3d389322cc7161e6de4ba3740242a28d10c0e235bb4064888159ed962ec3708e. 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/6134aeba-6ca0-400b-91ce-ac2a90b66146.json and https://artists.proofprofile.net/proofs/artist/6134aeba-6ca0-400b-91ce-ac2a90b66146.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 0x21aed0ca7d1f4506bf0fb4cd4c901364e6a4a695e72fdefae19348c4ac8ad4ae. 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/US2S71047001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x64b48a371060cdb54570ea5c901c18bdec7ac649d03b85d8176a2ef40794e99c. 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/US2S71047002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb48ae07ea59eefb1cbe2c1286ed30b35c693982c7ec43af63cdea126175a50df. 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/US2S71047003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b127d3fdbdd672cd327cebffb4f2349a0710120eb901076934762376cc209d6. 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/US2S71047004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8f0a9dc87e52e9268a7059b37fe33b41779395b2206b4458b14c30b27020f3. 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/US2S71047005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe192eb9aaebb4031bbc69d84cd9c7f19171de578696774e439eb8fe78a6c7a1. 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/US2S71047006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd591a81d51eb8b55d6dbb441b6625cba96bc4631a3d6db5bf03e3c13bcd0f323. 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/US2S71047008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcada7aebfa273efa075b98bf64a9204f8960847cec662127534c6744a703708e. Chain 2 (Bitcoin): anchored in block 957026 (2026-07-07T11:02:43Z), 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/US2S71047009.
Breakin' Through feat. El Michels Affair
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21343779d674e40ac1ac393736f9b28846d10886193bcc0f28c2d99947be165f. 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/US2S71047010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb1c2f4ce31c1853861a9c6a761a17c3c607b1881a6d89ed9669c13a178e6023. 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/US2S71047011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ed0c88497d8b5365d20dae5cbc5143ce57d8f45d900e37e9706cd359bd2cbe. Chain 2 (Bitcoin): anchored in block 954130 (2026-06-17T19:07:14Z), 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/US2S71047012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077ea0acdce7a68888e6811cc95b09d0a81e661db66f02b74ab223847ec3dba0. Chain 2 (Bitcoin): anchored in block 959118 (2026-07-22T10:01:58Z), 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/US2S71047013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1899a0356596b2bc0128c70bc5eee91207afd5e15a1aada9e0a5fcfff912bd5e. 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/US2S70939001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13361136c6bebca037f522d5696a9fd89e7a102f68b86fa052c5005d4f27c28c. 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/US2S70939002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad7763cb73dfb9abc41e2b6bd085e22e5d2fbc93237a5b60a65d365d992d44f1. 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/US2S70939003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f59b87d0b71ab1d4365f4c14a730918a394c3b6e00324306a07aed6f3dc939d. 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/US2S70939004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1abab15a870965b704d5e0a8678c281fdbce8567fd668f0aa62774fd864e35c. 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/US2S70939005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb5c0c7f3bce20d26d20444ba9c6733e47e5e074785bef314b980670a828b722. 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/US2S70939006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd024114e7ad35af16d5fe96ea32871dd84ab090598358e0f64885205ac9859e. 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/US2S70939008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebe844af0bfd480b92993ff5fd5ca706daba45ad6f8439d4c8be500721b8eca8. 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/US2S70939009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132c0106cc865a86cf04da5c70c5cf4bb7fbf85c365c0edfddf89fda0f24a7f4. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US2S70939010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4835b20bae3cb9626ec150e2c664960a354235a760442ef0fc0ef2bdbfd33d. 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/US2S70939011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x012c2f8e8f600f073460e66c1f0a86c05c82dcd0de68b7b369d0355fd879549e. 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/US2S70939012.
Black Man’s Cry: The Influence and Inspiration of Fela Kuti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef2852d5ebe7df53e19c7a1afd50194ea7a9a807559ebe1f3e8fec30663e7270. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US2S71056002.
6th Infantry Brigade Of The Nigerian Army
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc1497cf547f65608542ad0a070706246cb823e9ef4ab92befa22e8422cb900. 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/US2S71056003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42d727a05f0f6e4b4a1c678759087df1c9d77619ef14e2936b853d15e3e6b29b. 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/US2S71056004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b1f611bad3d9f616efd4f87e639cdeba91abd127e5666d00106a56009511339. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US2S71056005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdeed1e6ce66c2070ee8ef5dcbb78ca372dc4f01a10259307c8e63fb1f291f360. 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/US2S71056006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6946306163af48820b6fed7f0d258a642394e64f9a2ba2cb7073140b09ad89. 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/US2S71056009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2d5394f403db0cfb140ae704937db109f4fb4e7755a47bf9f6e0d433db1451. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/US2S71056010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2d7ac238c64c4cf0cceccfc7602a46e3b48eaa303cee248408159dd1de3290. 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/US2S71056012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa63e164e2df6ff60ed9fc5dcb9f6e1b4c33820fad406bb06922bdeef53106c83. 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/USGA19244464.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf135d7f0e3ce9c18007fd76f315ecf2788083c8ea4fe9e4013aaee4d113dc7dd. 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/JPE340600132.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe192eb9aaebb4031bbc69d84cd9c7f19171de578696774e439eb8fe78a6c7a1. 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/US2S71047006.
Beach Clean (HIKARU meets Kenichi Yanai)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b4b3b47760d3463e9decbb84fc4d0f3811709589ea702b3476f7b9363e83a5. 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/FR5R00901790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983499e7828e4c4404aee311d3394b8a1d4e6ddb0cd554b5ff0b4072d17e025b. 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/USA2P2042176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x091dfbb5962eadd5ca3957953252d0e07b768b8f12a4d3430b9630ea9a8e855c. 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/USA2P2042183.