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 0x14a0c028dd00809ccbab04daa17eb9853235dd30cc910946c6170e73c95622a2. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c4e917d-f174-46cd-a787-2d8c3b066989.json and https://artists.proofprofile.net/proofs/artist/4c4e917d-f174-46cd-a787-2d8c3b066989.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 0x85bade6e0093043b8d280248dadce6cf2f7f2501447b589701564a3ff9314ae3. 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/BRTRB1300369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9551d5726ce72b38e62a66366318364dbe236292d5ee03bfc0a25cc5d198a064. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRTRB1300396.
Ponto de Tranca Ruas / Eu Tenho Pena da Sua Lua Nova
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c8565e748f55c99bdb2aac5a5dfc6f224f231e7eddf323e2ca0be62b60bcf9. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRTRB1300397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe17c5648dcf948ff246a04b42029d7ea9b070cebf7ecf2bf221312c52d1c23c8. 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/BRTRB1300371.
Minha Kimbondo Estremeceu / A Bananeira / Ele Pisa No Toco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf06a0c79644586e0afef2963646ca179925785d0b5662bd831a2b193bd0ff28. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/BRTRB1300398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafe4941fb84e41a0ce3295fd1ee547f94c26114867e741b161f9b093e194b063. 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/BRTRB1300372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x627fa13b1d1c2e7ccfefe52acd21a832961af6f98255593e8a6eb65cc8f063ff. 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/BRTRB1300400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef490aab7aaca0dd7aaa6359d7a34e6e075a93cbe0c8a0536d5e6a5a21d25bc. 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/BRTRB1300373.
Alalô / Exu Veludo / O Mato Está Mexendo / Ó Lua / Meia Noite o Galo Canta
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8bc85af07efffe9446e264ad33a2fb9865d3e5e8c1d8ae64f42d0bb421fb08. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRTRB1300401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011c311a8c1cb96bdbcafb8e12983593064266f800fd5b55b9ab96c44b97a95e. 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/BRTRB1300374.
Festa No Reinado / Amigo Tiriri / Dois Amigos / Salve Ele / Clarão da Lua
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88e3cba346f00d534bbc1b3f21f7681a8dcc41d0f5387f93157703b95d3b850f. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRTRB1300402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2de6a6cbfa366fe5354dcff322a4bee988d20ac92c5a06a70050247dff26013. 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/BRTRB1300403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0775c333bebc5cc7257290cef458c2a6518e8ebdc2cd4e490346390027454de. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRTRB1300405.
Ponto do Caboclo Teimoso da Aruanda (Caboclo Rei Guiné)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ea1838ecc1c9f110f123fda0f07992fa9d49eba9440a2549ac71e620ed7f982. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRTRB1300377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4d304512cd8eaa32f387eb71cf12ad061fc9ef0075d5e78b4cf57b95c3ed8b. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BRTRB1300406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d8c95acca8b7afc57fc31eca8b37e947a80b4124616121d55e7111766a7dbf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRTRB1300378.
Tranca Ruas de Joelhos / Me Sara, Me Cura / Lindo Ponto Riscado
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9e36e55b458fc59de4e18fd0883467eaa89c55009369bc72179e0ff68ddb48b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRTRB1300407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f29bb52f7de69986e80fafa704c1659b0831179ba2aa4f1129b7e3176dae6de. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRTRB1300379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7a60969a3fcd748710dfc5bfb04257040c4e40adef7e5a807cd39da9b62103. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRTRB1300408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95ec546ff76052072886036b7545106c15a0aa66d15f3af3840dafc744650ef1. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRTRB1300380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccfe8cca734e99614b3c82559c7072412285bc5eb942f56137268a2a6e0f5a39. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRTRB1300409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0144a77889a7088a37493dc6113976876531ad646d37f863db24e64acbdce45e. 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/BRTRB1300381.
Senhor Ogum da Estrada / Graças a Deus, Meu Deus
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf318e0c3c4d42ce34bee1c17892e63a9a215e4c8be1183cf09475e7b03454b. 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/BRTRB1300411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6c92898210a9965553625e8a97180ea9c8bdca4cfd761555e9f1f809c3e0ad0. 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/BRTRB1300383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddde748a00794860ae3e66205a2cb3ad23094fc92025b9e80cad1d271d2a8954. 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/BRTRB1300384.
Atira, Atira / Ele Atirou / Caboclo Roxo / Seu Arranca-Toco Me Valerá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69cd33cd198093833455d288e0eaab60f5d7d75de3a8d0790ad3aa80960a4a08. 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/BRTRB1300412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf21253bd8f4ee8ddde46795ec5669403e7a94c1f25a6dd2bc53003271ac8e014. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRTRB1300385.
Vou Riscar um Ponto da Terra / Que Penacho É Aquele?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0547c7bdfeb6574d2e967348504dfe76c730f0c44347bc764f98e4ccdb31b81c. 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/BRTRB1300413.
Chegou Araribóia / Brasil É Hora / É de Coré
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac6b7f6a11558cecaade62adcca29a6bb9fb0978392261012d8bf29da984201a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/BRTRB1300415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49fef690225477594456d75c84918ccc00b12b852681e61e33062e75f2753581. 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/BRTRB1300388.
Caçador de Ubá / Chamou Seu Pedra Branca / Clarão da Lua / Seu Pena Branca
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc88ba027716e050d70b21f8f5b318944be9c7a10a587172c53f3119b68f5bad2. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRTRB1300416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05e4411475379cfc02d1671c86b25c668e81255356d2ef029944e0659f30af3. 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/BRTRB1300389.
Caboclo 7 Folhas / Oh Que Rio Tão Bonito
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcfcd898bd1a570d9c282bffca948baddde1860911811b5b5414b148f3560420. 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/BRTRB1300417.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f4af75381a85ecce0ab78c8b4ac45f36034c4c5dad7a58ca82a121c5edf449. 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/BRTRB1300390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x280e6b6d59a911e159813df59861ec0fcbd11500338fa6c3f2da82d52c4348c3. 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/BRTRB1300391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02bf44c1cddaab801ef5d332fa1e5ade3ac39632be483998fa9a185302623bdd. 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/BRTRB1300392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3caac2fe0ab1161cc8c417f42825305d88c5fbe9fb3ea03143bf7432d546bd57. 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/BRTRB1300393.
Quando Vou de Mar Adentro / A Umbanda É Luz
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57f8fad342e6de47c3533fd36fa41a845c1fd7fef22a22d456ac4b8889c71e2. 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/BRTRB1300394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9584561bd0df7a0e4972c75bd0ae9e40990f8d6a9727c57d9a01afa8ed9e4cb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BRTRB1300395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d55380b4cf656c38a90cebf62045b2a84d3b3f3bda4f6bbd24485659c67e8e0. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T17:10:51Z), 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/BRTRB1300422.
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26a997dc9b81f2924547a19c468bb1cdfbf0ed2b517f6775bf1a32657c95b774. Chain 2 (Bitcoin): anchored in block 960173 (2026-07-30T00:11:40Z), 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/BRTRB1300370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8d61a92388d4327e9f775d9a1d5767490bdbfc10f3c224fa65ffcb4e437853a. Chain 2 (Bitcoin): anchored in block 960105 (2026-07-29T12:35:17Z), 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/BRTRB1300375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b0506b2f6d8afba667a4de47bba7563e2888a1ebc4c0d15d7868b1043f891c7. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/BRTRB1300404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ee1b4f73f217e1e96f3c61b68d358653a21582ace51d6ac26d1af5e81abf09b. 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/BRTRB1300376.
Hino da Cabana do Mestre Omulu / Omulu É Meu Orixá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfedf0647eba702e44541d62dd5f5e9740b6627c411499248048ef8ed2b91636c. Chain 2 (Bitcoin): anchored in block 960106 (2026-07-29T12:41:21Z), 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/BRTRB1300410.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2e9a24d724bb51b8595b03e3243d36f03ee6357f2aef2c1a293c21439d6f50. Chain 2 (Bitcoin): anchored in block 960166 (2026-07-29T23:39:29Z), 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/BRTRB1300382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4813a98c214d79d38019c9097d49f468f5465c3449017232c55ce7c195cf66. Chain 2 (Bitcoin): anchored in block 960216 (2026-07-30T06:39:12Z), 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/BRTRB1300423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b89b78e2429ac9904a5ef75f112ef110e4f651d4dcc0f8d1711be6aeebafdea. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/BRTRB1300386.
São Dois Guerreiros / Rompe Serra: Segura o Ponto
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1797473730f4eb813471c0fce5ecbed923c23a91cdf1cf55ac76b63d1796e85. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/BRTRB1300414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b6c2b1c24ab062e50eaf5e29ebb4bc11f27e97b096d2b7acbac0d886315c76a. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BRTRB1300387.