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 0x55b745705df74ae10eca10fa02b46657ef3f02a0cf9e9f5afaa33d518cd7fb05. 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/f85f60ba-df33-47fa-8c66-551012bbfc26.json and https://artists.proofprofile.net/proofs/artist/f85f60ba-df33-47fa-8c66-551012bbfc26.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Indireta Reta (feat. DJ Lukinha da Inestan)
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 0x48f40b4efdb13a52f1c65ea3976032e6a4697ec87e7f9f8ca2c80fec0a3459de. 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/QZEQU2073278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe106e9988f0519e67e3c2a19a7db6f77b90f13dd05e53e6f0701592370f99f2f. 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/BXVSF2000190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6362fa1e99d13a6efac0f43dfa38559f7c30fd3af5f364b4b132b83f31f7e9d. 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/QZEQU2044416.
Os 4 Primeiros Passos (feat. DJ DN & Way Produtora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x111c1005640c248596a34249f429620b118f3e255def9c26b0f25c71e64fa9da. 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/QZEQU2216488.
Me Desculpa Pai, Me Desculpa Mãe Remix (feat. Dj Digo Beat & Way Produtora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe32089a1c5a658200717b39167e6464e42a045eca2713fd04954f849d0e6c0d. 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/QZEQU1923729.
Melhor Se Arrepender do Que Passar Vontade (feat. Mayrton Muniz, LB Único & Way Produtora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05a9ac2e1b460f5e37c949f74daaa5c941d89fefeec3bdfd951e68f1ee02be2. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-21T16:46:25Z), 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/BRQZT2000027.
Sento Rebolando (feat. Way Produtora, Pv Olliver, Felipe na Voz & DJ DN)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8730ca968cc952dd488112da0895f3b4a5cd9df004cf21bdd238298125364c9. 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/QZEQU2054997.
Se Tu Gamar Eu Sinto Muito (feat. DJ Bibi 22, Pl Torvic, Pezão MPC & Way Produtora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae10e16b58f05936dfefc64e9d04618e790de3e0259bff32ddb374c3c49b23b. 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/QZEQU2216489.
Hoje Que Eu Vou Me Jogar (feat. LB Único, Way Produtora & PL TORVIC)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f49b00de63bb8afdf4234f27d7f31d041387a1c29504f5aa948e7e1bcf55db7. 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/QZEQU2216490.
Não Importa o BPM (feat. Mc Vitinho Vibe, LB Único & Way Produtora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b5e7cf0d3c5ec2284b70550ec53c79b1904f51628d1f8c90a589ebf5b3ad91c. 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/QZEQU2216494.
Base do Chefe (feat. DJ DN & Way Produtora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e76b25775b406a8fef9b82d2a66f31e30aed8d7f01ecb3d8d4361a5c46a2e1. 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/QZEQU2216495.
Eu Tô de Boa à Toa (feat. LB Único & Way Produtora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x471017e613847954557125afdf8a2f733cc002b4e7f93917d70cd670c2159efd. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/QZEQU2216491.
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
Nós Fode Fode e Continua Amigos (feat. Way Produtora)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e550c10baa81cf9cb1b9f8349ccf7bbbf84585ac8a25fb73b9598e98cb76618. Chain 2 (Bitcoin): anchored in block 960254 (2026-07-30T12:06:10Z), 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/QZEQU2216493.