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 0x808b0a9999b1001986cb9e17f678c701a1e4a6fb28149caffff6b7d337da911c. 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/61f704d1-6f3c-41a5-87b6-b683de5af535.json and https://artists.proofprofile.net/proofs/artist/61f704d1-6f3c-41a5-87b6-b683de5af535.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Deusa da Passarela - Os Sambas da Beija-Flor de Nilópolis
No Chuveiro da Alegria, Quem Banha o Corpo Lava a Alma na Folia
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 0x1e5b711259d40d5c5416654740f11f507a2749ff379e58f14efbcc47964f938e. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:48:10Z), 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/QZMZ92116497.
Poços de Caldas Derrama Sobre a Terra Suas Águas Milagrosas. Do Caos Inicial à Explosão da Vida... ÁGua - A Nave-Mãe da Existência
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5285b17d00b9671647f03c529111d80c39b6f6a8c8b74d9da4fca722cfc81c90. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/QZMZ92116498.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d766690c9c77ebe3df44c5788c466e763ed2e67041c8909d79c1807fc9df6fe. 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/QZMZ92116499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7dc237b2e931d7deb2f15d903d5a89711e27173bcbb2c3156464ed5b0781a0c2. Chain 2 (Bitcoin): anchored in block 958691 (2026-07-19T07:19:31Z), 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/QZMZ92158888.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66a52a5fecb839d57283e4209b2665fabd30bb35e544ab9a34c75f64d89111d3. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:47:25Z), 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/QZMZ92158896.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3177b71704b63e2f55892de35484dc3782aeddb51d4d7e963035f428d388463f. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMZ92158897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90a8e62e52df99f82da2bca7300753ca4920730660bbacfc0e4f7a64f9564ecb. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/QZMZ92158898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24f771452cc5fef28ca2768fbc881e3c10df9a2b6b9d285ba1a11773d9bedbad. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZMZ92158899.
Uni-Duni-Tê, a Beija-Flor Escolheu: É Você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec25d2064f862cedfee47bdfe79bb5f63a4591b7d29bb9d4655f389588b3807f. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/QZMZ92158901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f7dd6e1048b789dc163f4da1f6cee4e417a34056b0a9103fed7d62ab6dc8341. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMZ92158902.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41910cf5388b0f9829114725a982d892c8cec03e61ba60795599a150f1c51d34. 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/QZMZ92158903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cf9de25f1b453a49ff7b44f987b0e3479d05d3eab8f217575646716d42f990. 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/QZMZ92158905.
Coletânea Beija-Flor de Nilópolis, Vol. 2
O Mundo Místico dos Caruanas nas Águas do Patu-Anu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c9d9ee593fd1f73eb7c767000b6146565b06274a0c88ef1d38338071b1501c. Chain 2 (Bitcoin): anchored in block 957624 (2026-07-11T23:13:54Z), 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/QZMZ92165252.
Araxá, Lugar Alto Onde Primeiro Se Avista o Sol
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x427fbeb020ada2cced7141d443dcbc8b40045b43dfa9318e5bbcfda90997b1b3. Chain 2 (Bitcoin): anchored in block 957625 (2026-07-11T23:15:09Z), 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/QZMZ92165253.
Brasil, um Coração Que Pulsa Forte. Pátria de Todos ou Terra de Ninguém?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf90b174f478fbc62192a6b89f88ed0b6a0aa12424c4c7a9c8b386137b8786cc9. 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/QZMZ92165254.
O Brasil Dá o Ar de Sua Graça. De Ícaro a Rubem Berta, o Ímpeto de Voar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5d50ac7b079ec3ad392530baa3dcfad2e1e050d6b3902f03b9ccff6a847dda. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T23:43:03Z), 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/QZMZ92165256.
O Povo Conta a Sua História: Saco Vazio Não para em Pé. A Mão Que Faz a Guerra Faz a Paz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179fa59e0b9feaaca56fe2b384e07dadc0447014cb1efb8498f7924c5a4344d6. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZMZ92165257.
Manôa, Manaus, Amazônia, Terra Santa: Alimenta o Corpo, Equilibra a Alma e Transmite a Paz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x358783ce49d679299b229fa6c0426548706c16e9eedbc3ee79c6d9acb6c14695. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-16T00:02:39Z), 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/QZMZ92165258.
O Vento Corta as Terras dos Pampas. Em Nome do Pai, do Filho e do Espírito Guarani. Sete Povos na Fé e na For... Sete Missões de Amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0e0b4a6b41d3cdf659f98f9c327c78e1ae1c37a7dffd0f5e4e39809961c1efa. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/QZMZ92165259.
São Luís - O Poema Encantado do Maranhão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf8c7ffd6cf5eba557ac62bd636adf0bbc7bf96633f2107ab77cad9a1a1e05c9. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T00:27:37Z), 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/QZMZ92165264.
Quem Não Viu Vai Ver… as Fábulas do Beija-Flor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedb8774f2dd0d8b30cb8b6428979fce70f2c4d870fe0dfc4d48a4ce131291d5a. 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/QZMZ92165269.
Sambas De Enredo Das Escolas De Samba 2017
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67d6e40a73e52e9134f4d339273c4afd7553117ffca49ea15957b95240fd2596. 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/BRGES1600005.
Monstro É Aquele Que Não Sabe Amar. Os Filhos Abandonados Da Pátria Que Os Pariu
Sambas De Enredo Das Escolas De Samba 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d91a876c248d597bec14ba648f4c787b59689c144d1095717e9e3ff0c75468a. 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/BRGES1700006.
Brava Gente! o Grito dos Excluídos no Bicentenário da Independência
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x199a1ec42cca98b0bdc5b69f75901436068ef0d3a5df11c26f8d98f8faca2687. 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/BRGES2200012.