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 0x9f7e08c43dd019dda2c70d8a23a74891a0b8c34fa004b44bd26b7b828026327a. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c0a5601-b70f-4c31-99d7-d999270d5080.json and https://artists.proofprofile.net/proofs/artist/4c0a5601-b70f-4c31-99d7-d999270d5080.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 0xe2714dba9719f4151ae6054463bdbbff226b747d5cf138f42058bad3f48164b2. 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/JPPO02403278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe43a2e0c87957dd94e7ef98c35c686d061b80f3bed694976b09aa752ff3bd7d. 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/JPPO02403279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b85a1b2edf5a7d76c526f6d049a3760e3892cc65dcccc05acf0e742cdfedcf. 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/JPPO02302243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0b08581b8ea2d93db00d72ebf3ef790e44f7ac14f7355e140a6ffa09f0f7ebb. 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/JPPO02204781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15ffb60bf964269cdd05d53003570ea6db4e67314714c0f21ca81a2c4fd93364. 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/JPPO02204779.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5de6cd61d0174f40154683106d6fcaa3d324230512807d422a8325f5ddfb1d4f. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/JPPO02202212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d44855fd0678c7cea8b95b8ceaddbfd32b94a53a0b028322919b28418bd54b. 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/JPPO02202214.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5065f14e5a3a671b6dad9d28d4526074b69fe259ca609141f53384b3be1e4d7. 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/JPPO02101804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4f0d62c3a65362c87e533fd6cb38069e6f6151ff190b4751a707426e1b4ebe7. 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/JPPO02001808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2083f0e36a5a53bddfa98715949e3bbfe4d56d6749de8244b2b0c8c4df485c0. 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/JPPO02001809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d41d1de0543459822dc3c7d089cfa201797dc6fa0b619d09701d4136e79dd0e. 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/JPPO02001810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773fe25e5e33a1baaa780f5ff6fc7be2c257f1f8318aa7607c49a2f13d26894b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/JPU901802887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89f157f6380c0ced7cc9f271c919f21a8c284c304e168d2ee8686d48f9faf8e2. 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/JPU901802889.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71034715a8e9b3526b9ec5dce29930e183eede6bcd2891a6f32da6a2b43453c3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:28:42Z), 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/JPU901802897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc907b22552dde227b4f429dd7fdc2013737c7e934fc4d8bc20fe7dd5722b21d4. 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/JPU901800871.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x597d65fd13584be724a1d93b0ee256a6992a20606cb7f4a6b3fddba3473bdf55. 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/JPU901703514.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ab1ff3f2e3215ba998331ccaa46739ef4459e84221642051a9946df5c91881a. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/JPU901703515.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bfea2e8d38778899954afb9772806e500230a13971ddb55c5d31d05ef7e9e3. 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/JPU901703519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x978f8b14e0c9efb844d8e830ae8b87e11b675e5ed3591d937d334ae6ea0435c2. 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/JPU901700801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36f37d25c273ecec441fa7286b21b824301e457e5e26cb53d3a37f1987b542b. 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/JPKI01610771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf20720e272bc3df389ab672538e93ff467915e48e62f697182d466b9ebbb50a. 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/JPKI01610783.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc205cf8927b1cd6a26cc457dd0e30003a6fb75943189f22035380f348c81267a. 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/JPKI01610784.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67fea3919d221312885c545c0440f87030cafd66fe521cbce278c79a6bfd1bba. 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/JPKI01710976.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x56d6454e173fe27bb76a3c3f0486ea5d407b2d2a283441ae4a28e437af406544. 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/JPKI01710995.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12855a66cbc7a19ffa59214a81662d79ef48f4406bd912c8560c00be9be306f1. 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/JPKI01612752.