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 0xdd976221c955d4df7e8702fa888f3b86d6adfe14f5b1dc147f006cf7688f4eec. 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/e1f71419-ffc8-4d76-8594-054f47466c23.json and https://artists.proofprofile.net/proofs/artist/e1f71419-ffc8-4d76-8594-054f47466c23.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 0x2d92b939e017f7a12e166c349c246a04cabff095b798f747ee3282028d120b2b. 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/JPPO02001399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7de503a530f6aa2301452a8ebe17eb03f414f25d8c0e0bb553cac9bdf26693cf. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T22:00:30Z), 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/JPPO02001392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2fd6d8e3972673b3520afd05af4d9f291bdffdb3fc873010dc5313b9e7112c3. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/JPPO02001394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50aee743dfb88d697c3f66142ee3626a0200eb006010565b6abf07760ab368b7. 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/JPPO02001395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb749efa7c1a0e42328440f791ea8f269a2921c60cb0fa46e90ee7668928b9207. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/JPPO02001396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdebd1636cd3f226096a2cc2960e0bb59b765de208ef10d22bde081786383c82e. 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/JPPO02001398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2586685fbaccdd730430e2a2eaf301b7953067429760bb5ecd0eca484c95cba3. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/JPWP02100674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc809f25d7192d10fca69f216005c9f9e6213fc6b9ee94aca7220b1f265aeca. 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/JPWP02101298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8946127077b3226846d2d473e3071a7013b911dcd4052188e8c490a7f7da1e8e. 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/JPWP02200272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52194b8a1de5bd495529855e3283abc0982850115e5cde75e88e51a563b1a546. 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/JPWP02270339.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f1ffaf64a2e87a8b89d202804a41a2b7497a037f1c13e993e67b82ed1c5c4b. 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/JPWP02270340.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5169fbf9993e2293091c446d411a737db31a8ab28a7dec05955c493126afe0f6. 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/JPWP02270341.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d5f1976e93e7ae026ca9a3b510bdd4e8925d6c83d7cd7cf8ae889e7d9cdbe77. 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/JPWP02270342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb267aa8e35fad86fb8bcc62da40b43c9280bbe83d8ca6243e84f0207c4d3f9ec. 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/JPWP02270343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc809f25d7192d10fca69f216005c9f9e6213fc6b9ee94aca7220b1f265aeca. 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/JPWP02101298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93255fec70f7ad34d516ef4fbe304b0e59a09070415715eca9b50bb354366d51. 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/JPWP02270344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34cc56541f592de7b0060ca2a59bc876527496bb85aa9f8a7e11a400f8f56a7d. 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/JPWP02270345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7add443011e090c7632774d4406c5998fbd317537b2eccf97343c1e152a05b. 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/JPWP02270346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2586685fbaccdd730430e2a2eaf301b7953067429760bb5ecd0eca484c95cba3. 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/JPWP02100674.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94aefe9027310976f218aa9d473b3d9bb073973b7a072c2f71840bc9bdeb9947. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/JPWP02271564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10b30f59c3a49d50a730058ea7dbe7962d20cdded847d3f256baab555c0dfff0. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/JPWP02271567.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36be755df646832f0a831319c134deaec06852c71dec05660855e7a703749d4f. 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/JPWP02370302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0413c57bcbe31581d4ba8691db658ab0602c8b2208ec6c2b5ac9333a8a73861b. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/JPWP02370303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27843c8633b37f10d7d9f68585ea0f3f49fb29ad99e4ea10abaddac44041c0eb. 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/JPWP02471078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b6611c1ccb7ba366da266e7dfd6d7e6d9265e016c32ac6b5f957cadb3e8414. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/JPWP02471079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09b2c2e87514c316dda325115fac4323f9ccb220423b8112a0b44ca2bdb40067. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/JPWP02471080.