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 0xb2c61351f3d70cf733476d083f819d4400efc65f7475e056c3eb00954e8958a2. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/324e8283-4c62-4a3f-80f8-87c631e87d82.json and https://artists.proofprofile.net/proofs/artist/324e8283-4c62-4a3f-80f8-87c631e87d82.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 0xd61f8d25c540bbc07aabc11d52e39e7d6c600790be325b2feeb224529fe5d181. 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/BX3D71900013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xabf5fec4a5214c51f28594afb2a26b3e12e9a7a7e949c5536702801869f2944d. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/BX3D71900001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe1027aaee4361a238be5f3d53d10312caadd3362dffbe8e7510d1882a334d3. 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/BX3D71900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe1027aaee4361a238be5f3d53d10312caadd3362dffbe8e7510d1882a334d3. 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/BX3D71900005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e6e04dfa8c139ca2cd2594b5ac7c73cfe160aa496cd6607624950382b447cfc. Chain 2 (Bitcoin): anchored in block 957048 (2026-07-07T14:18:56Z), 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/BX3D71900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa68014d59735496d553ca2dfe733b688d2a629e38f5793265d2a06a495937118. 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/BX3D71900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91323e5e13910b2812ac1c0e4796130599ced94df5d2aa009e057d6cdd29afc8. 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/BX3D71900014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda5ad8fe84080a197a9aa4cd15c499db5581c5d930324ca38a68d0f3ca17681f. 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/BX3D71900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2db74088359116f0615ad0d420aee8522069f58abb5e30f4ff7b4c114b12cf44. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/BX3D71900009.
Tapão na Raba / Hackearam-Me / Facas / Recairei
Meu Bem / A Gente Já Não Rola / Fortaleza / Climatizar / Não Faz Cara Feia / Valeu pra Aprender
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd80e957b3d18ac76dae9da013491499a59fcd329f7cd9dd1f7753bcb941b928d. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/QZNJV2105190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e643e076c1e953b397855065f605833df72773e18f35617710711eaf6820d79. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJX2124491.
A Troco de Nada / Depois da Briga / Perfume / Teu Segredo / Uma Estrela
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb62a530f3b379093c9f9b6429f7953b211e174866da749c6d5d93006e6c28903. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZNJX2124492.
O Que Tinha Que Dar / Insegurança / O Amor Não Tem Culpa / Duvido / Com Você Tô Completo / Me Espera
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02cd11df80aa7185991583e12f9cd3752d9413ef017f0856dc6861c1a12a9838. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/QZNJY2115651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d1e2a486122dbfe7b95a04fbeebbf144557e2ddadf937d22dc257be7cc4ec5f. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BKE2P2300001.
Tudo Tem Saída / A Gente Perdoa / Paranoia - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee62bad31aa4f0942ef714bc15ece24699b92979e72d167cd6eaa5beb78b438d. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BCYZT2400001.
Parou / Tá Fazendo Mal pra Mim / Só Nós Dois - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde01e21d19d72fcaae6ff7d92c770bf98daff28ee86a0f769653b33bbd74e990. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BCYZT2400002.
Planos / Complicado / Me Faltam Palavras - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd792f818c9feb0d27b5ba70b27cf91da42797676efb05976d10bf9376f591cc2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BCYZT2400003.
Proposta / Podia Ser a Gente / Só Tô Pedindo um Beijo Seu - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x555edbf98215a3cd91023c502d47a351eec9bdf53113d5b9d92d741dade38c85. 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/BCYZT2400004.
Diz Que Me Ama / Deixa O Sonho Nos Levar / Só Você / Flashback
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6ab0c40b1b951ecb6710aa17bdb53416a8abd2569be33e696c0714a73cf765b. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/QT3EZ2432836.
Depois Do Amor / Não Tem Saída / O Amor É Mais / Defeito Meu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x936c47cbd4154e57b344d1bd2987c20729b29f9c7539d463eabcfe17ed023c1c. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/QT3EZ2432838.