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 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 0x6b29dec6e563db7dab078a79a31d67065a6e21d1f086f397af507a89104e5e2b. Chain 2 (Bitcoin): anchored in block 953638 (2026-06-14T13:10:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/38a920bf-1bc8-4996-bc30-b0d8aac98fd1.json and https://artists.proofprofile.net/proofs/artist/38a920bf-1bc8-4996-bc30-b0d8aac98fd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Silva Neto e Matarazzo, Vol. 07 (Ao Vivo)
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 0xdb74d7e5f8a3deae451376bae3580a576ffaa9da009e05a35bf390a3e0407af5. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/BR1OC1500651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cf6652afd7e97d8438420e7bc5c5687aef99b654737279406cbbba34504fc0f. 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/BR10C1600523.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1aa1a12bcae613ea3b163533eec2e182315ef1829698a9a8e83f3a08f222deaa. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/BR10C1600524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e711d77afb1c23f4948ee35b9269bf3cdc24f36656c5b7783b7b880218d426. 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/BR1OC0900019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9308b8ec2856709889fcd5a6290fc78c50fd3b56d62d935abe3ba9d02a903aa7. 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/BR1OC0900020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e4bacdd557ce53c52cc7708370f3ce790b8c9ee4467ea3d6f79e8b93602b599. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/BR10C1600527.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f0352f1734b93ba9aaa5e593e8a2cd42ff021e672b9012193f977be4e06eba7. 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/BR1OC0900373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f6660a4aab1d13d167ffb9cf931f286bfedd6c1ea6937c25796da280e4c098. Chain 2 (Bitcoin): anchored in block 960362 (2026-07-31T06:58:00Z), 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/BRJLS0800137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x207df0d87154c1213bf3d5a9398e7e9a0d59f763f8874d6b27ab7d97ad9b8dce. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), 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/BRJLS0800140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb6bbbc702b7a32d2a1f6021e64e3501cbd6e92d8a863154174421ceed0346d4. 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/QZ5AB1616622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2f72b5b3235f6a3ff9aa52fdddeb533cdddb084ab4893abc8011872faf87c6. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BR1OC1200266.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x902584710a79fc60c53de67f5d9f3a32b2e6fe026c94c5e2f69c7ca77066b7c4. 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/BR1OC1600558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfadc9e6a1fdc8bbdb4b1e8cc65795c003c0b9bb1d4edb7238a1ac560b2843974. 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/BRJLS1100029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84611e08ba54880dd927384aa396cc8b191b9370b4813c1723bba5928c3a261b. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRJLS1100031.
Os Grandes Sucessos de Solevante, Juvenil e Zé Marquis (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbb9ca59200d23c8ae32fa750488f73fc8db296ff9b5e33730ff039a1f671f5f. 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/BRJLS0900041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf6c46513b6eeb384b152ea3b588beac45a03363525e6a6cf0b4a072ae1ecaf4. 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/US7VG1683875.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2b7ef8d9f0d3353d6d6352699492027feee6107debc9448fbfda0ecdf4b3ae1. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/BRJLS0900050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1328e5be87ba7f5340a822906fdb47652c363c4cb459c68d94556e1a52ba7086. 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/US7VG1683876.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0baebb201f41ded04b8e314b981ddcdc02a8c2efb0c9ef7d65c3fe4b384ecdf8. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BRJLS0900054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5239008044129c77c1e6f7001330398e00799063ceaa652a1ca8a19aa85c3f0. 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/US7VG1683877.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045aa43dbd0660c91d0f19220462e2fd9234ef7b46a102cbf0c48a13df9746a8. 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/BRJLS0900058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc5c5981ddad5abb219230742080c47ad16d387960d1c100ef2659e347d438f. 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/US7VG1735300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fabf9e46236658ac3d470d2323e246839c0ad2c8743d762ddfeab903e5ded94. 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/US7VG1735304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86d8c630a838feadfe2655c409990a2a7c1bf8d5c034fb9b162f14c665df4a1b. Chain 2 (Bitcoin): anchored in block 960309 (2026-07-30T20:35:49Z), 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/US7VG1735309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbf0ca4692344f391d242232d55f2188814f1ab6671b3c12904622b8194c3763. 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/US7VG1735311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67acca02bb7b5f4d0dc66a3b8654b3c991fba5d6f00d95780ec46263b036a50e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/BRJLS1100398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaff9984c693e3aa54c4bd61722386c2eff4f5cefdfbc9e21a570979662d0fd2. 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/BR1OC1600427.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40fc48a6028339195f2dac9157a4a27d54eca35968c552d3031c38b463f5e505. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/BRJLS1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42b52d59f0a069a4b4f12e4029649cb696bdecbd603ba8501620d3e468d82147. 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/BRJLS1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7796b8e20174389b0f99580bedd3b7518ec4ce86b104f4a7166366e1d6345273. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/BRJLS1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b06744aa1ed1970bbc2151900c0dd2ceb6e59beb59c5e1bba257ecaea7ebc5e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BR1OC1600429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6b0b6738008f50510912358d04ddb59b68990e70fc9ca4cb7b7704fbb21281e6. 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/BR1OC1600430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6defae95e27e1256bd18e601f9737167863f120b8eeb5a3f85b1662d8ebd58f0. Chain 2 (Bitcoin): anchored in block 960150 (2026-07-29T21:51:49Z), 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/BRJLS1200018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27713315a54ae5ec46cd43520034d150bb0634c7fb4a2ea4179051d80dd30364. 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/BRJLS1100399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34da3b3834d844462c6c2ba05e994b211440ea63ee01e3dc7b507077e6c54092. Chain 2 (Bitcoin): anchored in block 960509 (2026-08-01T04:30:37Z), 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/BRJLS1200021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aabc5a95949a3ba5065a8624cec2f9b428155273713e638bdcfdf6c17de1331. Chain 2 (Bitcoin): anchored in block 960463 (2026-07-31T20:42:35Z), 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/BRJLS1200019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86f773015477b021a46028502976e50cd30ed684bb69329905f882c8517208a7. 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/BRJLS1200020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd941a29f1f9ecaaf563c7a4b5fd0dd486ca53f44c0e71122a3a34eefdce4afb1. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/BRJLS1200062.