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 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 0x668d225ef099a4ecbee07ce6af4d3d1839649b7c6146f518b1832b25af1f4abd. 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/0af284f5-c24e-4f4e-9687-ea7fbec894be.json and https://artists.proofprofile.net/proofs/artist/0af284f5-c24e-4f4e-9687-ea7fbec894be.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 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 0x860852838f663190214c35d081abd4ea9230422c37d2df489c1ed9ffaa9b4f1a. 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/BXTRE1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e8b98d825cde1d98adfaa99a9231992c88819ed4070d631af3611b4438875c8. 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/BKGNR2200001.
Pra Lá de Bagdá / Solteiro Sim - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fe20a94869eb6a2f7f75a35d16d0c5f9476bd801702f9a97c7ab3a82f118391. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/BKGNR2200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x386b7b12c575fc81a6c654e1c23b611af4ab6014916ca1d6b95f9214fa497aac. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BKGNR2200003.
Só Falta Você (Eu Te Amo Demais) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0c0daa98fdd8b6435113c19a0b52cc5a343ec4b62a7964022162655cdc1631e. 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/BKGNR2200004.
Só Pensando em Você / Tatuagem - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3a716dda233a5f6637669311f0f859e4ad329bdd0afa7ea65e6aee9964d1d61. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T16:43:41Z), 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/BKGNR2200005.
Me Bate, Me Xinga / Tadim, Tadim - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd64154c057f09e629114f71e5491161376d7b6cf209ea0016dd38b4081ec5468. 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/BKGNR2200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca38e5605c4aaf3408bc5607e8cfcab5eee2eb4476535ede224b5fceeb4f939c. Chain 2 (Bitcoin): anchored in block 960294 (2026-07-30T18:46:00Z), 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/BKGNR2200007.
Som e Imagem / Dizem Que Eu Mudei - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb6dea36a0a85b7e570dffdf87937addabb05ddebfb65a6f935db718a84aa88. Chain 2 (Bitcoin): anchored in block 960198 (2026-07-30T02:21:55Z), 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/BKGNR2200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5071f010c60c7f5fa4a011974fa55ba047e61ed394c239f74c484f34d67951a8. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), 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/BKGNR2200009.
Sensível Demais / Um Homem Quando Ama - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05d313566cb77c4bb8456cd4eeed94fea0e28198fafca2740c2daa77a3cb3ecd. 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/BKGNR2200010.
O Que Combina / Tem Que Ser Você - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b104fdd77aab8bf457188f0dfb39f537e62eb18dad31b631ff6bbb5bcc68b88. 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/BKGNR2200011.
Só de Você / Meu Anjo / Revelação - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee15d4b9902ddd7445d5cc89f554852d272fec048107ddd2ca7ae96e709165eb. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/BKGNR2200012.
Fonte de Desejos / Indiferença - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98c41ad0a8328150e1f9a6ec57cb62a5b67bfeae62516e458a17a32533d8caf1. 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/BKGNR2200013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50a2f5f618b882cd119c254cbe93dd11ae4268b531225476a0479e21a35495af. 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/BKGNR2200014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6e4ffe515534daf52c802a3d1e479ea98d49af49fab72cf302e8a24333c8e89. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/BKGNR2200015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86a0161661717f00b3113794f32ad6aa0f1aadee69af136f35fd4a688aaf33ec. Chain 2 (Bitcoin): anchored in block 958996 (2026-07-21T10:57:35Z), 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/BKGNR2300057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0206f90e542712bd6df4d7b8968c15a03c56b96cda9d1c18569ebc306ae7edde. 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/BKGNR2300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c3f66c2790ae54832cd6e42a3aac7348fe51b6b8535eec56cf4f5471bd1028c. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/BKGNR2300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2295826879b8b8e8e64419a1ae466ead889f25633a037b12186ecd3c24f2d4d4. 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/BKGNR2300108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd0f48d68b09c80e05f26a40d983e0727d86c909f72424a67091a63c1cfb8cd1. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/BKGNR2300109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12e532ff0ef2e74a3af94b51a6d22a2f2c8757b1c55ddaef9e464fb0c2b309fa. Chain 2 (Bitcoin): anchored in block 960229 (2026-07-30T08:30:10Z), 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/BKGNR2300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2397bfdfd1a08ee644b3009fc9dd4dd96a298e3a0e1a7b7ecf9e76f075934b60. 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/BKGNR2300111.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6f21e0d6f2627d8e24a7759971889e11316f0bf89967683f24b5f595e68ec80. 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/BKGNR2300112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7127179bd1a866b4d2da850fe210a108ea1d46d66b2ab94dcd8c88069c644f6c. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), 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/BKGNR2300113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c1b4172d65467fdcf3feb0b36a2eba8a5f6a5522b017fb13a36c0e13e01416e. 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/BKGNR2300024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69b603c0009091c1f4f06128e31f7431921d8a98e37da12d5e7b8e64e0caebb. 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/BKGNR2300114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7260d2be81801eb38301227c28bc1029d88190a7c607b0b4b8cca090f7c3d378. 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/BKGNR2300115.
Jogo De Orgulho / Não Espere Amanhecer - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x533394347828e42e5670e51d141a03866a9ff1205f478f0d5b2e21d195306b5c. Chain 2 (Bitcoin): anchored in block 960314 (2026-07-30T21:00:46Z), 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/BKGNR2300116.
Não Tenha Dúvida / Cada Volta É Um Recomeço - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec4cf78021d6b88bf9fc60239d420b917037ddf5db2231ef2cffcc5c74d7ca92. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/BKGNR2300117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeca657849e4ba99b0ff9150e83217462c412cffb35956242a1a544f305aca725. 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/BKGNR2300118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8dfa5631d50b6fc82081de9f43cad5c91559d43187a61dd8e4e25269cb01246. 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/BKGNR2300119.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd23375b1fe43264fcc589a96fee3f2881cc5de3d003b027bdae3dc69a7b2d3a9. Chain 2 (Bitcoin): anchored in block 960448 (2026-07-31T18:48:12Z), 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/BKGNR2300120.
Quebradas da Noite / Cama Fria - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc69fada2aae94c00221a6a2b60e293eb95533ff39a6b030d7b4faf6267e16066. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BKGNR2300121.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcce3f79f7bcdd5c02b76521df7a506058c58da80f755c5614e52bce67ef94d20. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/BKGNR2300122.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a2c6996afebbe4cbed113d01972f4203d25a14de91e0d792b5c53012e3a8edd. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/BKGNR2300123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc6373fb9de97dcbb9a04e48e604ac4365029ad3f9aebe707739b3c1f25bb379. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BKGNR2300075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0f931a29e018995556903e720ad883c37a94e3e83a90c36bd3b2f8482afc1f. 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/BKGNR2300124.
⁠⁠Enquanto o Sol Brilhar / Pele de Maça - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77ca173c358c6b6061f14c2d0bace38640460506123c034222fa58e8c6c89097. 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/NL8RL2460195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b08db56d8af80db6197870aa637af853e05e16f802e4f11c723570cb5e59a67. 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/BKGNR2300105.