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 0xad80dca589e2a3f0e1b48d57fc4b686a140158ab8658fbc9364d33c6eb1f7403. 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/e25e712c-dc62-4cd7-8bad-3d2930397dcc.json and https://artists.proofprofile.net/proofs/artist/e25e712c-dc62-4cd7-8bad-3d2930397dcc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Quem tem medo é o Diabo / Ponto Sete Saias
Morde a Cara Dela - Ponto de Demanda Maria Farrapo
Frita no Dênde / Ponto de Demanda / Sete Saias
Frita no Dende Ponto de demanda Sete Saias
Bruxa Mirongueira - Ponto de Chamada Maria Farrapo
Farrapo mandou abrir a porta do cabaré (Ao Vivo)
Casa Grande Pega Fogo - Ponto de Demanda - Exu Carangola
Oração ao inimigo - Ponto de demanda PESADA
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 0xd47f85b0af8ad0ff6ebd323ed110fcafb9403f9fc597e7d223050f2d6cfd49b6. Chain 2 (Bitcoin): anchored in block 957695 (2026-07-12T11:16:12Z), 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/GX8LD2417635.
Eu fiz chorar - Ponto de demanda Sete Saias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x009d672aaf3eea068ccd62a286d6846a484fbda1779b21d8e6e644d9eec14f8b. Chain 2 (Bitcoin): anchored in block 957796 (2026-07-13T03:24:42Z), 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/GX8LD2498508.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e60e86d18c9abf90991f95fc6cef4526370c484fc2b87ae6b60915125356a29. Chain 2 (Bitcoin): anchored in block 958703 (2026-07-19T08:36:12Z), 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/GX8LD2451891.
A Pantera Chiou - Ponto Exu Pantera Negra
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ecb1991abb09d1d83c98c7a2a38e66a449880e6b6e120fdcc17d42582e0122. Chain 2 (Bitcoin): anchored in block 957689 (2026-07-12T10:12:33Z), 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/GX4R52462940.
Falange dos Sete Exu Gargalhadas e Pombagira Sete Saias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x213eef1506b5b0f8a1184e0f0f219032c2d897a94032346fe676402a9436a8c9. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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/BC6M22422515.
SETE SAIAS CHEGOU PONTO DE CHAMADA Pombagira Sete Saias
Balança a Figueira Moça Pombagira da Figueira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333908216987d389d77a9871868a7d590d7ec224c6715b3728a17505428c478a. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/BC6M22433675.
SALVE A BANDA DA JUSTIÇA- POMBAGIRA MARIA QUITÉRIA
BALANÇA A FIGUEIRA-POMBAGIRA DA FIGUEIRA
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f4ba8088804289715f33e3822a4fb79a0c96dabc172e7603dc7eefed1f24eb9. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T05:43:55Z), 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/BC6M22557597.