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 0xa1a1dd004d30be9229d9ce9c5a46b1381461893cdaaca9c8ccb716e9cd07b9d9. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09de8fa2-1b95-4eef-ba88-a181e69fa716.json and https://artists.proofprofile.net/proofs/artist/09de8fa2-1b95-4eef-ba88-a181e69fa716.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x9f6359c8d599f269e1cafa2ec5fb364a88aec828a68b770202fa07090de584c8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZNJW2349519.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65121f5e5c11587f5e93054fc989dd938b932b3711a82fb2b920c76758e07e96. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/QZNJW2349524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ce892052db31a01c9bae964ff7f4662474ac928cce127a6dcc62514b74fddef. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/QZTVM2327021.
Bloquinho do Naipe do Jeito do Brabo: Mete Mete / Vai Tome Tome / Relaxa / Me Bota Gostoso / Ela Tira / O Seu Amigo / Minha Bonequinha
Bloquinho Fala Baixinho 3.0: Me Bota Me Soca / Linguadinha / Vem / Pega a Baba / Trepa / Bota Que Bota / Derrama na Cara / De Quatro
Bloquinho New Suit: Barraco de Madeira / Te Catucar / Flexiona / Boto Inteira / Todo Dia / Concentrada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4326254a7c874bc951747ca1c9261fc54388099f19bdf271d3a27710973e44c1. 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/QZNJW2594166.
Bloquinho Resenha: Eu Gosto / Emcima / Bonekinha / Metade
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6996ce941500c76c082b98d9fd6e57ae88bc3b4a0b3e2ed12f903100d8c41e9c. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/QZNJZ2530212.
Pagohit : Bumbum-Tamtam / Pau e Água / Quero Gozar de Novo / Marquinha de Fita / Movimento
Bloquinho Resenha 2.0: Fala pra Caralho / Falo Mais Eu Faço / Acho Que Eu Já Te Vi / Comeu o Meu Marido / Bipolar / Na Escuna / Marquinha de Fita / Pau na Sahara / A Ideia É do Velho / Fica Atoladinha