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 0xd5b000dde00e46574e1b3d0239fca620e32567a1a175bc518521b229fa29c37c. 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/3313ecbc-4a46-44be-ac5f-26cf938dd0bd.json and https://artists.proofprofile.net/proofs/artist/3313ecbc-4a46-44be-ac5f-26cf938dd0bd.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 0x7d39ee2d5aef2f826406d309c853ff571b9948fa85d25dd120ed27fbfbb1631e. 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/DEH742307703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb27c809f1bf75e39c6422c158ba1b2ff870cf7452117ee05070bacbea119182d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZW9L2449745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0df1bcffcb66cfc19df32512be1c23c282136aa5a3ad97b234d84c889511386. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/QZW9L2470525.
Ponto Exu Capa Preta - Quando Eu Passei na Encruza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb530a5ef25a3df09bf3325518869b7e88bc38303e1ea9b50f3e351168568f63. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZW9L2497272.
Os Dono da Calunga - Ponto de Tata Caveira, Rosa Caveira
Eu Sou Filho de Zé Pelintra, Filho de Oxalá
Pomba Gira Dama da Noite - Tava Doente de Amor Procurando Remédio na Rua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fc96aabf2d846ffb5071af1f6031a9a3454404a5eca59f9871b604c8af7a7b3. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/QZW9M2465089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16c8d4c5dd43a6d619e349f05226612f1678973fd926750dc6a26da53a78d9e. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/QZW9M2452144.
Ponto Pomba Gira Menina Onde Você Tá, Eu To Com Saudade de Te Ouvir Gargalhar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d992f15ec6f6c9d358f9eb80a41d298c6fb1f30835ec7a0fc0b151a9718594a. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/US7VG2509143.
Malandra Maria Navalha, Ficou Me Desejando a Morte
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef7629d265348f80204f55767c96a54f83f1bb0960a72d6b42fe8caed4f56fc5. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US7VG2513732.
Ponto, Foi Vovô Seu Preto Velho Me Contou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ea8d24655210139c5df409296afc3b70fd5acee0814706e94adc212a8a7486. Chain 2 (Bitcoin): anchored in block 958473 (2026-07-18T00:52:36Z), 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/US7VG2513266.
São os Mistérios de Orixá - Ponto de Umbanda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd95316c6641e3162aec2ffb642369e7f342526dc5ab8bd93e402400a09a9da4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZGLM2506226.
É a Maria Quitéria Que Chegou - Ponto de Pomba Gira
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2b95711d80aeedd0c3daf0bcc6666a7d305ca5ba9e185965d0374c19519d16. 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/QZGLM2506239.
Malandra É Malandra e Mané É Mané - Ponto da Maria Navalha
Gargalhou Minha Pomba Gira Maria Padilha
Pode Botar Meu Nome no Sapo - Ponto de Demanda
Pomba Gira Rainha acabou de Chegar - Ponto de Firmeza
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a2ca67c2a0d34ae54d54dcc31e15f4f6f4d37640dd06f68fddb534521692d56. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:41:51Z), 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/GXD7G2510279.
Saravei a Banda dos Preto Velho - Pai Benedito, Maria Redonda, Pai Joaquim, Maria Conga
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf07b135b04778495a0ed2a9d0538fb244649100ed6fa6077128ec4eb12958f3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/QZMZ92554577.
Ponta da Jurema / Cheguei na Mata e Vi uma Cabocla
Aruanda Me Chama Eu Vou - Ponto de Subida dos Preto Velho
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a74b16140e1ef8081eec6ef93727ab00f6595d3ba0fad8df5669ce10b0ceb2. Chain 2 (Bitcoin): anchored in block 957782 (2026-07-13T00:52:48Z), 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/QZNJW2543952.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c76bfb11997ca2de0ac5ec7a2a5b1e892cff64a8059e316038137b860072d5. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:59:20Z), 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/QZNJW2571599.
Firmei Meu Ponto na Porteira do Curral (Ponto de Boiadeiro)
Vai Morrer Me Demandando / Samba de Curimba
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50bb77dfbbf92ce32c61da51482ab53609614c79e0cd0c8edf772b55c1072955. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T16:01:22Z), 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/QZNJY2548869.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0ba06b3adbf7c7ac7115c7d2f8c63cbfc939ae5186c3a2166d429abfe071fea. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZNJY2591908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23b21144b2bd35529a9af01f2e7f23c816262be6c9be7682ddb296e2e4b436a2. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/QZNJZ2516427.
Ele É Vencedor de Guerra - Ponto de Ogum