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 0xdc4f7fef64ad22d3ec5152b7371998f3a6a94201d5d1ebf10e6c064dedbb8988. 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/529af493-1c98-4853-b1ae-bdecc944f1fd.json and https://artists.proofprofile.net/proofs/artist/529af493-1c98-4853-b1ae-bdecc944f1fd.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 0xaf3bc602e3370c1cb74e8134e18a85c402c09a068220e63eafd26926f82abc27. Chain 2 (Bitcoin): anchored in block 957833 (2026-07-13T09:36:32Z), 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/US6R21308822.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e278390adb945ba11daa1f1aa9a8afbed3c63daf667965972ac53f6aecdb10c. 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/US6R21308824.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f888b9c1d3c4880102eced2e396a9d6239a0ea3de51f9f35b436baa4f605fe6. 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/US6R21308825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ff63d5169c0ca815bf38c9f388fb0f6e16fdc9cd1f139af005218100095ac3e. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:32:29Z), 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/US6R21308826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50cb302452a72d15a9f788225fb2ea55c0cf5137315b838c10208f420c58e96. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/US6R21308821.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1de8e00a14b6b1af4ab35971dcfaa6a701f816d2a6d412b88391bf110a58b264. 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/QMDA61395612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x960aa5cd01e0fff317ecd3199d66680cd5031fc94300cc10aa3c044e238d6f41. 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/QMDA61367381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e027a8c57a2e6479f0e4d8a1853dddb7208ac5f8ec78c8dfa32f61aba35927d. 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/QMDA61367382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f8e36e5332c93a7ae8fa20076ac3c2541a084000aeda1f8040722e9e08784d. 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/QMDA61367383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360b63e4c14f308c3aed4927a9bcbf1ce7a64d93499f3db859584bcfba7cf083. 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/QMDA61367384.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119ca493691231650fed39ab42abcf0f2059d3f5210927f9bc751ea95dfe4b90. 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/QMDA61367385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a7ab5a893be6cd1c789b4688c19da8c295f18ebc0df77df688b206df6ca3a5. 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/QMDA61367386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c1317d312a2bbab20155ac54d7fa76bb9251a1e2c6dda906030e793ba7195f5. 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/QMDA61367387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728987a6a4e8f7f4d69bfdce7ed58c225ec4831c1074afe265a148ac525b2ed2. 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/QMDA61367388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40c85bc584f6943801a4eb9a9479ec9a9727a9f9772138ac8832f8a75fe62cff. 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/QMDA61367390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a976efce27142b00cb8785f711504b0143c88dc3781fac0492b3b439039caf3. 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/QMDA61367391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a302703753b2c2c2f8555d126ceee3b2a7155c96b23e11cc6c6bd8de91e60af. 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/QMDA61367392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ce0358410a5fe748c0c0d63c0a3923de127508374d9cef28e13a15377fba0aa. 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/QMDA61367393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4292ac6ab1d4f1b771c3439d9a6d5a4e808d83fd3e56e0ae38dec2e2d09f62. 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/QM6MZ1837980.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7af644a2e762623e9ccfa2a9ab6f09ff1c5dacb808892a9b0c72249d4d277972. 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/US6R21317949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd56de22d1d6937fd534b5c08810c542ea7285adbcd080ddb2ba51bef4ffd9f16. 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/US6R21317950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x747c6a40d78356cf29ee93a84dcc0ea78c248cb96c0103383a4b66957880fae6. 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/US6R21317951.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fbc0764e068c046251d57a57155312e58b947a44306df62b23a30b2488b9f49. 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/US6R21317953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f59f934c3e6be2438050b2790ca7f75cc8bfb08adf8f6bff8641afed008668b. 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/US6R21317955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef871e73e697b10b0da1484095fc94a08b9312c5ef01a015e8eb156be123385. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/US6R21317958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9dd9409cdef0612ff6763fa8d69facdce690a2591a7c8c00b924b2e836ea35. 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/US6R21317959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacfcc120e0b4ef011d46cd8f19cb0933280f8133844de21d46e26c6184a6a667. 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/US6R21317961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04954c057cace6d62958d45073e6d5fe95a1efd6c9de017d787f4a8ae0a9cc67. 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/US6R21317962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c076284e93eb3d03d782fce4287707e70097f9be5429f453b8e33900251bc63. 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/ESA011691229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17a62283b14ae2fed2c59b82a806b134fb7f47ecbb3fbf47b76f0d77fbc1ece. 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/ESA011691230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf55a2bc04616dfd77ce3553e6d237f8a222cbca78326b083feacb356942a1d2. 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/ESA011691231.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9093b8e29e6ca1946c49e9dd8936677c843b156ba9b4bc1abe433cf514c7c527. 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/ESA011691232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6ef10b4676e803668368ea3bf6b185636b6935a7eaeca2230d9a510cf3b738. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/ESA011691234.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f76a21343cea2562530286eeb5451aab5b88202955fea4164d2d9dc41362eaa. 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/ESA011691235.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe14841645405f6658a92e8f0eb2a386e19b90bbac1938f831abd66745f087ba5. 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/ESA011691237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7686482b0aef2456b556ffc5c8929f51c69c5f3a1327c2d2f607abf7576fb0d5. 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/ESA011691238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0282992b94ed233e5beedefd20dee7252263cab656bf7d177acb09bf55dfc38. 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/ESA011691239.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb002c03254100742c06d8e6b276f1e8f38ac36ddb708432ce27f88cc299f048d. 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/ESA011691240.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8328c385cd6062485e813d809d3746dee82f6b8dd56a828b7154e9345246b513. 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/ESA011691241.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2855e9b45a5311995baffac0ac750dc77dd94e6d99a4f7ffd5b5c707b13213f. 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/ESA011691242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bda7437f25a4900c8f221b2907a0484f535f2ab892e13f97d45e5cfd50387d1. 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/ESA011691244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c948f609898682e48b996877c05dfac4e933d3ca686e94abb6e61f0034a320. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ESA011691233.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x503672e1c3b8e85fcd1869d45f3ab2a2b4ff6834f386994dfafb520567fe23c4. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/ESA011691236.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab5c40b2de3bc37d09ca57251e3b72db920a15b057a58fb10d853d709bc89aa2. Chain 2 (Bitcoin): anchored in block 960095 (2026-07-29T11:07:37Z), 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/ESA011691243.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84a63275a976a48b417a62dc1c6cdc925021b8c4ccd2ab76a06ea10d08547a1a. 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/ES71G1939688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ef28fd6f664db7aa2391ad3c912eb481b3e7888ba3e32b5f34eca50a249e781. 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/QM6N22014522.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd45ab74f32a386d1af046c0e361e45609e941cb0b48287a4bc201956d894765e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/ES6102121503.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9878aa173e1c5e107b8d4652221ce1d589d30c58482168c2b4ecc5bf5836698. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/ES65E2200326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb53d1d91dbe4aba572a61fe4e76001e4b024f5cf32cd3f410f7d3469d9d29266. 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/QZ5AB2432895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36584406289f6e4104130a8080f9ca862b380737a2189bc2789bcd799537301d. 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/ES64E2416677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59499c3cf8e01309dc54d4a00b3cfd66e7b0cbd24469d0b54b66b3acaba80176. 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/ESA011800897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae53c4cc6e776cc89cd10bdd9382e097a1c4b146e804cc1918a342ef02340468. 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/QM7281908155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bd4e557ec96b7690d2af8765288d5582dfd67f896ec95df94a73577413a111. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ESA011807174.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aef71fd0804102611ae8940847f102c5b3ed0ba4626c1371c344e9c0e56ae9a. 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/QZGLS2301041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebf3974376ccdfdbb69b71a2728730fdc129099299bfb414d85e67186e387e2a. 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/QM4TX2044242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26e6f235a89291b9ff693e8482f9f88a79b3340f6826753cfa15b55e326e32d. 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/QM6N22043201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa26e6f235a89291b9ff693e8482f9f88a79b3340f6826753cfa15b55e326e32d. 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/QM6N22043201.