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 0x550efdd1157bfa37d0da19acaa23ea2dc95aa1eb8b55e5ef7e7deec5a03043ee. 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/dad5b7c4-3b35-40e8-ba09-0b9c0f33742d.json and https://artists.proofprofile.net/proofs/artist/dad5b7c4-3b35-40e8-ba09-0b9c0f33742d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
DOBRADINHA DA MENTIROSA (REGGAE FUNK (DOBRADINHA)
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 0xea900cbd7242366c31133ca5dba2460b9e5de683deff43051edeb3131bd10ef9. 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/QZTB82385420.
DOBRADINHA- ALMA GÊMEA VS FUNK- REGGAE FUNK
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72e8775b50ce0647091c1c20ebbea3eb1968de29b2e023f36dab84e0d286fc6. 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/QZWFQ2358277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x028842cd947f7739dcb02aee16756c0951ae42587374ff05a7d61d5b55987ac6. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZFZ62425484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3622deede9cd3909a09654af329d695945512be0d52003980fbd632db6d9805c. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/QZES82495557.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e51d2e5ad34653103e7c3d65f88355031119e6d4ac6d5c81fb331acedf86efb. 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/QZK6P2414683.
MÃO NA BONECA VS FODE VAGABUNDA (REGGAE FUNK)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c273fc1d3b67bf9a9b5fa3957933f933ff84c3ffdb99b1b168670883fc43f0d. 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/QZK6M2410887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf3a2298bc498dec7c7cc166ac4ef4b9fd060d54bbfd5171b14a33ba117fe8fb. 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/QZK6L2406338.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb0889e90b6fce9eb683694481af173363e67e2a7c514876711bde6cef6e1ca8. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/QZMEN2425861.
MELÔ DE MULHER DE VAGABUNDO (REGGAE FUNK)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb446bd9df5aa6fdfc813a6a69ecc0966f8cd4ee7faae989cd3270a41ef684ec1. 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/QZMEN2472846.
MELÔ DE SÔNIA VS BANCO DO PAJERO (REGGAE FUNK)
DOBRADINHA- MELÔ DE VITAMINA VS PIRANHA SAFADA (REGGAE FUNK)
MELÔ DE CARRO EM MOVIMENTO (REGGAE FUNK)
MELÔ DE TEMPESTADE VS FUNK (REGGAE FUNK)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa5f859d61f068176806f21bd2252227728bc2b7efc82f36e202c827c2a7b19. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/QZWFX2449954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4abba407ef16718859be8cf5402a458584dc54560cebaf4ecbaacd71f89e802d. 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/QT3EY2488697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c26e8b1addaaec4212a0decd5df2f950df0319b0f2a8d4c3aedcd28c620e705. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/QZK6J2584606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfd5e7da805b81a68b0f09b9dd66c3394138ad8a20c470cec20aaefea045da56. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T12:03:04Z), 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/QZK6J2587139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48d374c78eb122699e4f381ec6a8314eeb6ecaa08b0cb9d50af6eea15ee7821b. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/QZTB32593366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9943411f6e583e45d8fe0878218bc81b674aac8652dfeac2320fb476676402e. Chain 2 (Bitcoin): anchored in block 958822 (2026-07-20T04:30:07Z), 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/QT3EY2534985.