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 0x598709148fad859e7e2e6bdf4019c4e91b955849bb47cfaa07ca849821384e90. 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/cdb0bce3-09d3-4225-ae20-6df8f066da49.json and https://artists.proofprofile.net/proofs/artist/cdb0bce3-09d3-4225-ae20-6df8f066da49.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Os Mlk do Fox (Dj Puffe e Ferrugem Dj Remix)
Gandaia do Puffe, Vol. 2 - As Brabas de SP
Medley Oficial de Role Com o Puffe - Funk My Life
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 0xc889c9d930f46ffc51ab87c7a0cc36f88529e331b536c8069d1d943834bf6496. Chain 2 (Bitcoin): anchored in block 957866 (2026-07-13T14:54:25Z), 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/QZEQU2033727.
Medley Oficial de Role Com o Puffe - Nunca Desista dos Seus Sonhos (feat. Mc Kevin)
Medley Oficial de Role Com o Puffe - Nunca Desista dos Seus Sonhos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40522bb77e1f49890bb967c431818f409d69719243709345fac417c02010cb45. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/QZEQU2034063.
Medley Oficial MC Hariel de Rolê Com o Puffe - Funk My Life (feat. MC Hariel)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fa6a38229b9996cd6bbe08f2ffd17a194ed6245331288bae7e004c942b21210. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/US3DF2106660.
Eu Só Vejo Tu Gastando e Não Pega Ninguém
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x660715b0c516dfa9c44c4c32b475b24384f6bb7cdd8b70753afdbbe06d7c082f. 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/ESA112322852.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x681d9608ad9857d0c663e483e4a23dfd24727f1c6a1db7656006a0c226dde4e3. 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/ESA112323343.
Set Festa e Gandaia (feat. MC Kaue DM, Mc Jhojhow, MR FÁ, Mc Gê & DJ KAIO7)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa780464a708f994cdb6f2b1584dc4148a66e1c71d33cc3a53e91b2bcb31f929d. 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/ESA112323342.
Gandaia do Puffe Vol.3 (feat. Mc Gê, Mc N1 & Mc Robs)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93ac363c45748cf171aeff6d501d388cf1dfc3363e8851511570bd82baf006a0. 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/ESA112323946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d656d981f731b2552040ca2c72232c6ece29ae451988eae268486cb40d19a6d. 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/ESA112323937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedf1a21da4880ac174955697cfc0730fc15e2881c4ebfa24716fedad56c17f62. 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/ESA112323938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08c55e21e9e7630fa9544d5eb8a5201b6ece429f818f2afc485905e43e77c2f0. 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/ESA112323939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a423cf5cb8f122080eae355e382013b3abc47583de96de34e7f4ce3d7a0ddb. 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/ESA112323940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d7088fe4b679946cc2c5b29905b8d2e82ec3b979d60714c22bc224002ecb4f5. 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/ESA112323941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc96edcdf557a0a74ed3a0efc6af4140d536baa206254f2120952e3b6986f9cf8. 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/ESA112323931.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cc2de7967c0d72092229ad61e9a94470e78259d322ed80a5313e8361e3bf07a. 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/ESA112449560.
Projeto Gueto Jd Campanário [Cultura Sonora Urbana]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcee0ac1a0c396b2a8543a6819224955e225d280b526f387f01e3752cd365db2. 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/BR1FK2500033.