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 0x84d2ee7e0188765e31d0193bf3cf5024bc16f745d47e9d0adec9ac5d118ee623. 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/a4dc902f-3d97-40fe-a063-ae6c430ef344.json and https://artists.proofprofile.net/proofs/artist/a4dc902f-3d97-40fe-a063-ae6c430ef344.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 0x392dd36eae229d8ead3daf00eca88a0d159e645f1bbc722c0851da153a048bd4. 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/BRJYS0600133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef7e650057a66ee2a39b50045ca04ca8bc40e486b04132c75538a312558b37b. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/BRJYS0600137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb08e1243289be8b7e991a16b4e7370b1725b9d68f8babc1af2d259daefa00a80. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BRJYS0600138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4468b2eedf8a5ff87b3db27b2294c328f9899ed258fda9bad2b396b14cf8e4b. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BRJYS0600140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc665d90c5dc3ba4f6e5dd33ac2c3a31419d926d9135faf3b7f85f619eca4f0bf. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BRJYS0600141.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea707963a052ca963f55cff694602b726b4df948c59dc10fbef21e81a3b2a231. 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/BRGGZ1300013.
Pot Pourri: O Bicho Vai Pegar / Na Sola Da Bota / De Bem Com A Vida (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bced7e2267c79064d48909b014f891394dbac3d3d0f53240456696f695f4168. 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/BRGGZ1300023.
Pot Pourri: Vai Dar Namoro / Quer Casar Comigo / Robin Hood Da Paixão (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c0729919f85eed11c9540aaeee4aa126aabd123fdf88c3b3ca56b072e9db80. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:42:26Z), 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/BRGGZ1300029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0b108e694bb25be1008b07fc4db3699cabb48ccf8174e6f2bb1d23e9e712ff6. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX201711097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd28fb6120409d35dff686a31a0afa6a8de7d2fb08110aa4d4500f609e2d9fa66. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/FRX201711108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878370eca64e1fcb52c61c7014f346f821fb651eb6f8d405cd8441ea2b3eea58. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FRX201711109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb56ed88a2a0c19486683cef64a7d080ef97f59cca13a49c8734c84fda5b164a9. Chain 2 (Bitcoin): anchored in block 958756 (2026-07-19T18:58:30Z), 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/FRX201711110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2fc56b241fab728788073de382ceb2b94cfdc273e0e10318c6d83c02c6bcb34a. 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/FR59R1865295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9772b09a1bd6f08853fe47d85acfb21715a0ecf5ef24ae99a02a9101ff4725c0. 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/FR59R1865296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b4fa1801d0d5fd891e8e4f514d6c396842e705daf38faa637f61458352fb98c. 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/FR59R1865300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5deb5dd4c2d08e3255447eb639c8190960dc56d7e6e6647a2abd9bd161cf1a96. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR59R1865306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26ebc074083a01298b52116c4d24c6d4241bf321453f895a4cee3a3e7bb89307. 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/FR59R1865311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x314091315fbf990cefb7c2730a2866c5b3d6507e18aa739d71e180becdbfbfad. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/FR59R1865293.
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 0xf1bb87c7173670a9530ac42e7165243f139c00acc71e45ef9a2f44089074177e. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), 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/FR59R1865307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3f2febd8b21069748350e9b02a98f281b71fff3d48d942d8ddf1d73d39f4b26. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/FR59R1865308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3108d3d9137949f9eb17e729e42bd349d006b9e88bc151aeb43402724a078d18. Chain 2 (Bitcoin): anchored in block 958218 (2026-07-16T00:33:33Z), 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/BRGGZ1900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa31d62f1613c119653761ba29b9999356967e0b70fd1222c16d7ac3ecb5093bc. 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/BRGGZ1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d6249e04fa95b23b4760e273c7e5a06a9b9de82a06c9205655941d9dbc66437. 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/BRGGZ1900022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62facf9c055525568ae9e43c99ecfc3fa2fbaf66b3998724853127c6df731a8. 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/BRQKW1200027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e744389d2ca43f2b839833f57a8e7c7ce89584514e45a6ecbadff069e4c46e5. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BRGGZ0800004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbed7f4a951fbf26e3a67fcb28a50b8ace1996d274d0c7fc42a516a1ec3c0326d. 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/BRGGZ0900004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa1bd3b9feb470de127364e8ae4a9fd9c32a8069c0d1c6894e3e70d417c6a677. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/BRGGZ0800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5be3a089265bfe29a7361451e1b5d379c2e739c17a3f800727d88f88140dca42. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T05:03:25Z), 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/BRQIZ1400104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027f346a0357ad39a2f8add304cb90268dc1cde6cdb9bf3c906bb1d46bb72399. 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/BRGGZ0800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x654e30636770d8f066c9d81dc656a5be2fc69e0f70399bea0cae64d8e397870a. 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/BRGGZ0800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe294066d36a4492e9392575690b1568e8b560794a727fd76272d914cdd0ae3b. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:07:16Z), 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/BRGGZ0900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6ef1bff108f682c23939aadf6f49d3ffb5553a8436bb39ea39cfa1dd139836ce. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/BX3341900147.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb47f13466e4caff9a9eb3c07663d86acf964997ee00f96d6f31e5dd5b2ffa15. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/BX3341900085.