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 0x2f00ad74c5bbc21e3407db6d6ee5fb2d304115d8b359e64a923399b3cd8b3828. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cabbb30d-468e-4121-bb6b-bdcb8e13cc34.json and https://artists.proofprofile.net/proofs/artist/cabbb30d-468e-4121-bb6b-bdcb8e13cc34.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 0xff3d5c828119286094183a33bc19750d12911483d8945ada2df72a4d13ee7fb9. 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/USHM21281462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1191ca7e37f8b0973bf522529a5c35f3fb807d630eb435bdab60c86e4f7e02. 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/USHM21281466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e578db6c88eb9f5ef90b718f8a87d5d14d98363e46eb783befc1f034c8cd43f. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:50:56Z), 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/USHM21281468.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acd7ffd58b38f45c468a0a2aba726f8b9976abe88e3fe383b5759f8440f703d. 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/USHM21281471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x447f8a3e218c2e38c7ad337535c5a94a880c9692d4ba861018fead5690d63897. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/USHM21281459.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff3d5c828119286094183a33bc19750d12911483d8945ada2df72a4d13ee7fb9. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/USHM21281462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c1191ca7e37f8b0973bf522529a5c35f3fb807d630eb435bdab60c86e4f7e02. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/USHM21281466.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57f11910914d210d89d24cf8d0877f9e37d651e37b283a5a850c4c9e3941358. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/USHM21281469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8acd7ffd58b38f45c468a0a2aba726f8b9976abe88e3fe383b5759f8440f703d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM21281471.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8ee528079499bfc813255bdcbf439094e35c6bb9af9ad7c53b6d4164b4d3876. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/QMDA71520001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95970f7e9e41881758bbd2506437d46b6ddde81bf8a46ce91ca0a7023f33632c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/QMFMF1562297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd246ca1a2cac80c28d9101897611ed377e5d6afbdd2cfd53b11b6b8926d16934. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/QMDA61888301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7c86f6f9c64e2fe25b0d74f0fae2f7a3be61630e421e07b1ea84f11fd08c8a. 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/QMDA61890206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95970f7e9e41881758bbd2506437d46b6ddde81bf8a46ce91ca0a7023f33632c. 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/QMFMF1562297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf43e02b17ea0515cbbac972b682b0fd61b4507738e2b721af47901e1ab8d46. 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/QMDA61888623.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd246ca1a2cac80c28d9101897611ed377e5d6afbdd2cfd53b11b6b8926d16934. 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/QMDA61888301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b7c86f6f9c64e2fe25b0d74f0fae2f7a3be61630e421e07b1ea84f11fd08c8a. 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/QMDA61890206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb2b45fba7100707d338ab380122eaad262c9ec47d2c9a7b2bcf6122cb6fb1e9. Chain 2 (Bitcoin): anchored in block 957012 (2026-07-21T21:41:08Z), 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/QMDA61888299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99bcdaca062715dc9d2399eef80686e983f5e815c815a110f30a7cfa3c87260. 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/QM4TX1714548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ba760956fd276c16486218227e970984953a5e4f5eb2544fd19a892adc82b3. 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/QMDA71852811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993fbab475b85091b3d928eee980c9ec26b73f2cdad5f242c248e6f94af33eb5. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QM6N22031112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a76ad3de7bcc79a46843fb22d72d3c165efde4ca649e5c54ee6a9d90359bfcd. 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/QM6N22031115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041bfafb329ba3a50b2d07b34665bf1ea5511fc473b1f89f83f834a603623508. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/QM6N22031116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x800561d56f16bc31a01c48bd1ec3548b414b7fdb4683357c7390218dd85d848d. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T17:35:31Z), 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/QM6N22031111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x993fbab475b85091b3d928eee980c9ec26b73f2cdad5f242c248e6f94af33eb5. 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/QM6N22031112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a76ad3de7bcc79a46843fb22d72d3c165efde4ca649e5c54ee6a9d90359bfcd. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QM6N22031115.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x041bfafb329ba3a50b2d07b34665bf1ea5511fc473b1f89f83f834a603623508. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T12:05:48Z), 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/QM6N22031116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d52d298a3fb99a3093b4f333c0be0ec26812b3a4249ae12c05a84c431f2b828. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:50:04Z), 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/QM6N22031118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb462ae594f252548a1ee1594df5307f6db179bed376aa1fbe8700303d7daa95c. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T21:33:46Z), 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/US7VG2153081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1bd2f549b820952fbedb8233893613c29b3ebb6bd2e102ba524006b7c76b89c. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/QZGLM2181397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832a44098bad9c4347c7f82a7c620c884d4f24947d939ca25bbb1f43dcf1c271. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/QZMZ92102078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x832a44098bad9c4347c7f82a7c620c884d4f24947d939ca25bbb1f43dcf1c271. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/QZMZ92102078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28119a5247ee65a438b6fda9563c2b44148bfcf0e91eb4a161e919424b1396b. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZHZ32220663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacf97e893053b35788cf5f21f3f02a3e4d68fb547d79b9a23ce6e2103794952a. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/QZNWT2279966.
Y Ahora Como Van Hacer Para Picar La Torta (Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ca47b4935117155e09c1af7d3c48009d238131c71bd496b539dfab710e7ae8c. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T22:55:40Z), 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/AUMEV2425603.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c383028219246ea9ab17516b556b438254bb0e5faeabad824ac0975b35aefd7. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/QZTPX2416903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fabe23d3af6011f469824d3fb162272f3c5dc33f0f9909eeda8fa13c641fe5a. 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/QZ7R42050111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd902b67ccce58d9f47872647264bda3fec6bd0fea813375af89be9f10642fd81. 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/QZ7R41952191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x645b28718c7efcd97474418cd5a8d0f928ab88f39c4774cee85bf6efba97499f. 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/QZW9K2355433.