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 0x3c665c590ec4fe75cb469b9f4840b8dfabc91a3ba08e7184040241ce286be5ea. 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/da78cf42-7902-450b-86b8-d1dcc87419ab.json and https://artists.proofprofile.net/proofs/artist/da78cf42-7902-450b-86b8-d1dcc87419ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Morro de Saudade / A Saudade Mandou Avisar (Vê Se Pod)
Morro de Saudade / A Saudade Mandou Avisar - Vê Se Pod, 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 0x402fca8135ee53a7a1c3ae1bf7d82721d414ede89f7d4120e544f26218090447. 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/BXNT62400250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55029ff9a783d8c7900b259d63c41bb221bf74f9d5fe97fabec590acf2d636d5. 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/BXNT62209255.
Ela Não Está Aqui / A Lenda (Vê Se Pod, Ao Vivo)
Ela Não Está Aqui / A Lenda - Vê Se Pod, Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee552fce60b778fa4f796bc48400d291e359f016a93d3a790bdf6f5bd080adcb. Chain 2 (Bitcoin): anchored in block 960212 (2026-07-30T05:43:45Z), 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/BXNT62208967.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fb98841091b498b8bf334173a103f6ac2e9b7736e448f44ebe9a18e7b321b7. 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/BXNT62208831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x671455ebf733f46d99c43a6c83df9e7dd89883433de2fc68d944afbe73ed3a6c. 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/BXNT62204992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x077496070df7bfc05a83fbe4277755f8dd8fc777c5b73d2ef0024478c9007219. 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/BXNT62204516.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ab0281c0ca90a5581d4a639f5534a55dc69060057d06bd8ae1e7b48b5e2aa9. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/US7VG2345613.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4327ace24ed7fe630949c8e3d7735872dadad10c9bca8eba314fa7ec95830800. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/US7VG2345614.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86021addac7ae777e9868c1efcbb048948c37e858e4b77fee59a541a501aee51. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/US7VG2345615.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71c04498d867b1441d4bacade1d79a8524b354adbfdcc0f389d66d9621b0b2e3. 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/US7VG2345616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed59f0dd25a93941972579b469fa259820335b8df2a4a3289bc31c6c093dc4d0. 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/US7VG2345617.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc2c5414a5aa9e48d28892bb27f690859baf69f19854f026340075c142e80ec. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/US7VG2345618.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c140058cef4fd36de037db32d34e7d8cdfaba37966e999d8571db0ad2e6f89b. 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/BKRT02200001.
Geração Fazendinha: Esquema Na Fazendinha
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cc5194861f61027341b4f775d1fb3118bd936eda2a4b00eabe3e5a415ab6452. 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/BRWMB2300146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a175534556c1b5f0bc30da1350dbe710d891d619a67a27b5575855ba8840bcb. 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/BXNT62400869.
Amor Olha Pra Mim / Então Valeu (Vê Se Pod)
Amor Olha Pra Mim / Então Valeu - Vê Se Pod, Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b651fe720d3dadb295d6e8179f672b235dc773eda17c62ee959fb8c77d1b1d. 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/BXNT62402161.
Insegurança / Refém - Vê Se Pod, Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a90144a6ddde7b86b191f5795d3c602b83dcf6dd4f1b1b5cd9646b7a54974ab. 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/BXNT62401640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe418ed6b22df28d804a329adb3c37b6d417254a29cb7de6a4c53cbea219dfa. 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/BXNT62401238.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e12bf667e4f0d117ce90c3a42b11b1bc78bd946037f0e1702cca288f902f5c8. 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/BXNT62401121.
Mentiras Confortáveis - Vê Se Pod, Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c788e3f3c3b8980811b8fedeed6aef6e17e9de0b822bc830cbe460fbedc2f68. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/BXNT62400683.