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 0x441b9f77a8b3ced672a471cbb289d5c2d4001797ccfa2ea6dee6094ffdb6f329. 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/29a9f89d-ef9e-43d4-9b0c-d4c42505954f.json and https://artists.proofprofile.net/proofs/artist/29a9f89d-ef9e-43d4-9b0c-d4c42505954f.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 0x29dd3c4554b4f4a5cd0cfbd33e0946b42b086f59927500ffae2c4e12bb6eae8f. 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/QZMHL2400198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ca3ff39b6e25ea2d7fdf1d9690f05dfad1ba8ca4b22b443f0d17dd8b5dfa6e. 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/QZMHM2400114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72b5134794172f51736f0da3f5a33f6e1982a72b0895c5708c1128bb31977a7d. 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/USX9P2412233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc22a7a3b115600b7104c7faeab9dff6864a4f23026f7f9664c9c0f5fef2f8944. 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/FR2X42591993.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c326755b62b13c94b21319a5f82389deae7b24ca0b915cf608922894075118f. 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/QM42K2433924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac1551c6c97fc02720ff4eeecadf357787d3778c031ee86e8cb254d6774db90. 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/ITOGB2500044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf49be4556c88ac507aff66d518997123ca7c9775eb134fdd9a2a96d094e0b823. 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/ITOGB2500045.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf583063f301f603f89714a0832f61dcd8171b45c7441ccbf3488ed2c85b7ca. 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/ITOGB2500046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1d90b8bef3d3229cb38bb0b56d2780c34ca48299b9b9ad393b3cac09b67dc6. 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/ITOGB2500047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ac2f678f9e5581500baf053e6f9e4d9bae181dcc0766eb54d71e49cec021f22. 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/ITOGB2500048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba8557317a5666c1d7c3caff2674a0850f209841ef1eeac5043b32d0ebab74fd. 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/ITOGB2500049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9edad699c1957aa2fdc4c8bc571fb11b678881f6feb7d0492b4fa47d5c1d39fe. 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/ITOGB2500050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5383c99178f582daad722d1ebea778d493eb14fffcbd94c45e26ad9c94005e1d. 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/ITOGB2500051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66153443cab4ed45a885966903ef3105e66f3b93e5d8a901d167e05a156ec866. 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/ITOGB2500052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6680560d4e11b62269e1dfc2d4bc7c66fd8620d52c686fa214d5f9c059b37b54. 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/ITOGB2500053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec8e27f7173aeeed7b8ec49f5662a16fe59239e8a2f016f5890af0e0bd7f8c30. 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/ITOGB2500054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae035a79b550df82354f2057be23b178dd06da72a62df862969915fd24a5808a. 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/ITOGB2500055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d0d2104efddd49a882e0f964171b6fcc4c8f4c4420f7b4471449b64bc92c189. 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/ITOGB2500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ebca09628c77599feadce1a0beb8ae20b580a4ca0705c9cd78ed296e7ad933. 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/ITOGB2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x394df8d5070c6d571a9e624f7851ab1097bc6a2d4f94bbc960d5b2508f68e2db. 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/ITOGB2500008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cb8c2dd4de65e3f9fc4d03958a84f8d9ba65cabd589984eb5f9186fc4cc04a4. 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/ITOGB2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8e04971ab1b2a6d5f3be4244acb4814d8243319803e2815e6f294d58ad986c. 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/ITOGB2500010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2dca629a6d4b04616affe235e1d4fb06b53a49c623ebd8a36589d7f960151f. 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/ITOGB2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4098a4a601f257e77bd14a7683f55f5b0701e5f4c8720880cd73878482c5b17. 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/ITOGB2500012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5918c90eb5643fb7d3d5a867e0795c3f2e10ccd021555f702c7b9baf5f554922. 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/ITOGB2500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6abd2af139b0f8760b472048a6076fd17c06d8d50e1f779edf1a09d2ba52fe4d. 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/ITOGB2500014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389104f8d5c3727d98ef051d1547ab9561ecb418dfc36b85a7335706e5f11f12. 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/QT3EZ2482463.
La grande mareggiata da sud, estate 1962