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 0xcb54cd6cc4cbcdc6dc07deed7a2749e873601802c4efd5724fd94560ca3304ac. Chain 2 (Bitcoin): anchored in block 953842 (2026-06-15T22:22:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fd89a6a8-1a31-426c-b134-6da85c34d556.json and https://artists.proofprofile.net/proofs/artist/fd89a6a8-1a31-426c-b134-6da85c34d556.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 0xd6cfefbdec9c5f152f3bcc8b77006820842e932921b5bb1323ae611c1e9bdeab. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T15:16:36Z), 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/BXA8E2300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1875ee24e402b698f8d4739e8d9ab8c7256a90e67beb572730513e45d377777. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZNJV2326832.
Refém / Reinventar / Falta Você - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8669e27b196638029f3e467f194abea9a4dd098618ed05b6957dec4f1e49c65c. 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/QZNJV2326833.
Eu Nunca Amei Assim / Sobrenatural / Só pro Meu Prazer - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c2f512586c674b475d10c4ee63eb559b6e292690daeb9b6a5385da29c9f0341. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/QZNJV2326837.
Relicário / All Star / Palavras ao Vento - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422b9ac0bd34a0189d8e663924f8c2241fec9e55b1d9dd8233744a7689bf5d8b. 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/QZNJV2326838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20952784aeb06ca0336fb6695a571ed0cb9fb245d4d5b57d9a413b5eb1cd5689. 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/QZNJV2326839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43817654ea9b4a688059bab81d07114e525da368f5fb62498a10b818e62f0fdd. 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/QZNJV2326844.
Tchau e Bença / Vamo Que Vamo / A Gente Bota pra Quebrar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa42ca77ee81ecf863ceaedfc121079b5f3fb52731d3720abe8cc70b144e5fb1a. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/QZNJV2326830.
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
Lancinho / Horário de Verão / Luz Cama e Ação / Camisa 10 - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71db77a154f4210aaf861dd34a780d90e8561f72e3ca56ff89d2a62b1286f13c. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), 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/QZNJV2326831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370ba965fb0867999438d7c15181d158447beb99fc41f09bc162399e1b4e2b9c. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/QZNJV2326834.
Insegurança / Mande um Sinal / Fã de Carteirinha - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb2b6c69d3fe9d9bd2e2cfea7abfe86fcd9d8763e0ad340c274a62a00f74937a. Chain 2 (Bitcoin): anchored in block 960389 (2026-07-31T10:20:10Z), 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/QZNJV2326835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea0eedb5ebf8cf6d8d99971d07e16f64238eeb60c1c5d3e0d543b02258b72a5f. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/QZNJV2326836.
Meus Sentimentos / Mulher Fatal / É Sempre Assim (Para de Bobeira) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3469aa15a6229396911a0b6cb1c20506e8aff177d4ef276eeae1119f75db124d. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/QZNJV2326840.
Me Apaixonei pela Pessoa Errada / Ta Vendo Aquela Lua / Domingando / Fugidinha - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb0e5318dd872f0e0d674aef200e4a9fffe955f59446d2017fad30f127cdaf72. Chain 2 (Bitcoin): anchored in block 960487 (2026-08-01T00:15:43Z), 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/QZNJV2326841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75919dce130735bfcd1131d78de7431513a2da475343bd9694b54f3d5cd09839. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), 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/QZNJV2326843.
Samba Diferente / Dança da Vassoura / Cilada / Polivalência / Papo de Jacaré / Samba de Roda da Bahia - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb283c9be79973cd91efc86109f541c18787b7e8aac6e034d74006921cf24d735. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/QZNJV2326845.
Palpite / Não Precisa Mudar / Toda Forma de Amor - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2da1d2eb1165b019cf0ce441357044fdbe8d1b41d043f9efdbb84d2baea002b1. Chain 2 (Bitcoin): anchored in block 960160 (2026-07-29T22:48:59Z), 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/QZNJV2326847.
De Ladinho / Não Me Conte Seus Problemas / Eva - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eb1a39f4297dd4230e5358211b60b5c84bb7a0db770f9ac1e580102e1f08a5a. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/QZNJV2326849.
Me Faz Feliz / Maravilha Te Amar / Escondida / Hoje a Noite É Nossa / Amor Eterno (Cover)
Energia Surreal / Me Apaixonei / Desliga e Vem / Tá Vendo Aquela Lua (Cover)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee9f4a8afef2d6c16c63858369f0d5891b0c204e7462a7067bfbd621b8a72894. 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/QZHZ62046840.
Quando Você Passa / As Quatro Estações / A Lenda
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff86089bd3279604e298aecfd191308d1a70529c9c9921261affa156d8c95139. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T19:59:27Z), 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/QZGLS2053001.
Notificação Preferida / Atrasadinha - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x246ca46e3a1ba59186a4eb0d75e1f1caef2f496e107d20ec995d3c26f6901119. 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/QZGLS1926637.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dd6f43b1a81020fa811a1a3fda93ccd74b86bbcf807d94821022a45d4a66405. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/QZGLS1926634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbeafaeddccca63ee3c33ad4e1c828da845c4d8d5be40fae4a86007dcfcac8e4f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/US7VG1830122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaef221a03e7a16967761583cafef1fce7d8e8cd4a9840141f5d436c5125559d6. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/BK7TO2500017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47fc0c4fc7706e0d35d90061f378a0d3949c7701b6a10e41f547b77aa8e6dbb4. Chain 2 (Bitcoin): anchored in block 957055 (2026-07-21T23:00:36Z), 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/QZTPX2479156.