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 0xb916d2bbf2d73a15981fa8ae181549271459ebf60ac58dcdccc45d72acc25406. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52a1dafd-fb2e-4be9-9d82-2804af6f70c2.json and https://artists.proofprofile.net/proofs/artist/52a1dafd-fb2e-4be9-9d82-2804af6f70c2.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 0x9da9ad484566caf234a87beda915fb5f8bc79f4a60562001268c5fc9cf912eaa. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:00:40Z), 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/UYS059700102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3840930bd1cb80fa2ed94cbe83c2c73e3513c6f9f989b289dd02cd56140a3ce4. 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/UYS059200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c0add34c617b1cc86f70d991571db3dee34d6d1a1b8a02eb9afa939945885ae. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/UYS059300128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c2f3b9951212d38659b008efff86f686a6596812ab884f628dee984b6101c0. 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/UYS059600149.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4df331dd0fad5783b36d26aec82e5a0c78bb6a15e30f7c0e9117b3ae6cacdc63. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UYS059600153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0783552add7fe8bf2195a128dd56c8d8869dc3b1e815b0d26653ddcfee9d46a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/UYS059700244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff4ef68729e1db62ac75bbe9544b006f340c65eccfdcb7fa4aedf902a5f1c6ae. 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/UYS059500232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a316e5cc43d15a91984085a7fb14366b4b5acb675135fd502eb9baa86dc0a51. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/UYS059500235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d763ba1d7912e5eaedc98aaccf4c6ec666f823bb5418df866f4e82630994a65. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UYS059500238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a7c3f3516332c7e8412ef436f86944b778ead01efa7e6f719b18b4df8280db7. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T10:32:04Z), 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/UYS059600095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ce6990a9d95b37c3805f68d89245b9d50db4852e0c3c46a6c252ef7c99559c. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/UYS059600096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61def908e5e4379c00b113c3047d56c593cb7c783688631bad22d734f705d301. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UYS059600099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x815ec3a0ebaddddcce42a7a2959b3d75c87d1b8ff3fc545cbf1b25c6c82838f6. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/UYS059600104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9569d914e6e2a25f9e9428046f9b764d80fdf396a1f3a8fd08b35e14247809ec. Chain 2 (Bitcoin): anchored in block 956748 (2026-07-05T05:55:59Z), 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/UYS059600501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dc5fb4fe55508648278b1100ce7d321a6c16fc215b6c04b4c8c64316094728f. 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/UYS059600152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fe6386fa4e040d7a628932c66a3721ec9c4a99f72885895441c97e07f220202. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:22:53Z), 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/UYS059600155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54ce02773e5f38df855bfe568ce2d3e5e05333693c3eaa7af12a44a664a83b79. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/UYS059700094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf11e118b36c57675fe1ce0597f96ea5cead48ca551d10147917eb46c1eb60e7c. 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/UYS059900328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x566672727dfb2f1dff45f04a4697800a798b4ee4c1a46cb126ebd56e24529d6b. 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/UYS050000152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c174c4315df050e7ee0ef7fc5dca7ec4670595afa80413f08a8db79634b9f18. 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/UYS050000153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd861a2e222ee356601ca31295af663609c50fc830b98c97774af8ecbb8ce9899. 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/UYS050000160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dcd5ae0b41a9d7a8ed008952bcb0c67488a28e8fbba927ebd87225b68c7be73. 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/UYM121200077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d2c53baaa9862f0bcd1257ed190157a8e68a7bfdb471c540b38230eb20dd332. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/UYM121200078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb46600caa85ccb428109d0126bb33595d0020f2fadf6818182d1a0b2caa23a. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/UYM121200082.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fb4606a5ace0bd5a6fe219e7544d249276ee4ceb65bde49bbad6d994a6949f2. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/UYM121200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47ffd7b66058e27135e5a8ea48d61bb6e240e36a9e63966c4d1648270dcfc8eb. 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/UYM121200088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9893a5b42ce6b113c91d96dd8ffd5ee607a02cfcb48abd00fbaa80cf510005. 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/UYM121200089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc7e8d56b278fdfdaf62407993f54a89fb56684424266cfcb42d0f018e5bcd8. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/UYM121200090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09e93c7f3de6540d89e6211da9b35981601c58587f667fea16c34e49824c0814. 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/UYM121200091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x100bb6816200415f2b8b8c7549c2dc4c6e170f62077e9ae031a90c08ba9a6bed. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZFYY2215501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8558473c7b7b1248c4a98672cd526f74334c05d4f6b8f58a3538122e07a55f. Chain 2 (Bitcoin): anchored in block 958126 (2026-07-15T11:10:17Z), 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/UYM122201308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36be2165a187321088639e289b6d6cab18f8bc12cd4682b8fa46a0f46018ec5a. 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/QZK6M2302060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x305c94427605062f883b9f55d5307656fce9265fd0a265f8b587fffc384be963. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/QZDA72549473.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c76458453acbf4f1f55a47c0eaa208a4ed63676a51c0d89ccee42587635a525. 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/QZTAW2518247.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1027ab5a43b51f5c4f6263b734ecf270e2ab8d94881e1d2f5efe498090d2852b. 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/QT6E52586387.
Lo Mejor de la Música Tropical Uruguay (70 Años de Cx42)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bbef040766425529e7851a2d0d1b81d309f8dc427d7975bbf553ac7592a5cb4. 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/UYS050000210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa622b7ea30435ed74fc1d4a7984a50e4f4102efcb545e1c1e73918c8804819d2. 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/UYM121201128.