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 0xb8305880f5905ea4de9dbf2c7cde90364ba9e64be0e943fa1b8160006ab7e602. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e7cb577-6e13-4eb4-9923-581993154531.json and https://artists.proofprofile.net/proofs/artist/5e7cb577-6e13-4eb4-9923-581993154531.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
CD Bar Brahma Apresenta Naninha em Nossa Feijoada
Batuque na Cozinha / Canta Canta Minha Gente / Quem é do Mar / Samba do Trabalhador
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 0x941cda7ff328cbbe86a7d240c42e357a7f5c76f74da6cf39f74abbe64b0e7fe9. 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/BX4IU2000021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x114acff555dc2f784215835c27458083bf658ee3dd34e11b9098978bbd8f0edf. 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/BX4IU2000022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bf88403876fd0f551e83db23a40e6fd63f389f281c245312892e34b4e5fe83. 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/BX4IU2000023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62de91ace38b04ba7889c28ecb002b29f953dafa165c3ad671ef55c256303761. 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/BX4IU2000024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43dbb25f24210408f53e8e0d30759f53874a35b335ef99be1d70cec1f9e31d1. 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/BX4IU2000025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663a8da39343325e48392f538514e995235577babf53e8905914ce335d478a7a. 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/BX4IU2000026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c6107836bc81ca5d53b2ca4a962f4a3c240fca999cbeeaa064ff2748ae631a5. 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/BX4IU2000027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa8c30b2bd5140e2b04bd8dc24cd049e070fa00b78c7f0458457ed68f0991d9b. 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/BX4IU2000028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8c224aff8127e5b48b49a4dd54a288217380dd651f09d195ae3084c59daa406. 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/BX4IU2000029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1c8dfda1e53d9e907d910590a94511b042f64ed465f5eb359f24293fe81605f. 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/BX4IU2000030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae493458a5b44b8390f96b375efc6c47433b0f57a5522bfd89629885edefac1a. 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/BX4IU2000031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06f49b846d086d67864931c0df18067dcfc27e174361c8c23a356ec39829020c. 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/BX4IU2000032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x734d5ca46f53d59c61ecda67a8243e03289279d4b8eda6f362f3a876d63e330e. 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/BX4IU2000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa458ecf0e93375d16814c1c040a9522f6fdab51518688f48462714eb181dbb11. 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/BX4IU2000034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04b4f02b933f82f948d8ed023ac04886e2ec21f073b85de6bf9f3aba71df373a. 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/BX4IU2000035.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4bca832fe678f46eb033f064eea61c655e5b66c2dd98488a4437391fa7627a0. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), 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/BRMDM1400250.
Entrevista / Lá Vai Viola / Defeito de Mulher
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd94678b69d18c43596a317864c836b090b893c7408612214c5fc694086e4dc2. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/BRMDM1400252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xada2299ebeaae10e500c2ac7a6ce69fb5a11208e8c52445fae5a74e7c8783579. 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/BRMDM1400256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa6527a3fb5588cbbf5c0eddb6ad7ce463d73c291f8c3789377e686b25c850c13. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-17T00:06:11Z), 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/BRIAW2000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17d02dbbc5134fe52e7885c6f9ca44e323c7c1ffb8dab06906ab597ffefa651. 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/BRIAW2000002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9000ed929529be7deed8c6e8cb218941bca252ee343ee376ea69cae64bf7ed07. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), 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/BRIAW2000003.
Me Leva / Louca / Um Grande Amor Termina - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c4ba37a479ad8028c42c29e732bcbf04257ce9abab43a53a6ea14db3f1d98d5. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T02:02:36Z), 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/BRIAW2000004.
A Coisa Mais / Vida de Amante / Inigualável - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019eabdd208b4a856e64847d4f2c3e88d924b040c8e31b04a3c50ba8154f0918. Chain 2 (Bitcoin): anchored in block 958130 (2026-07-15T11:11:15Z), 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/BRIAW2000005.
Além do Horizonte / Um Milhão de Amigos - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x647e0cdec9970ad2c5a3848c3c8f7345a22927c183e97bf1375940a1d0a227e0. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/BRIAW2000006.
Muito Estranho / Casinha de Sapê - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983c008026c88d310e6482adc9e088f1edc1d4b235465109fc249ac5276ddf3f. 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/BRIAW2000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf1d950039b8182ed27b7528c337e00b142b5c88626eb7e1e8b11c4d6a93fc64. 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/BRIAW2000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fd7a7bf84ea0e4d83508d8b87bb4851bc6ccc89db38d7ba89a46c66330d0259. Chain 2 (Bitcoin): anchored in block 958716 (2026-07-19T10:15:55Z), 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/BRIAW2000009.
Palavras / Māos / Brilho No Olhar - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe10a499c6e223062db1472b2ea97849df12cc0467b74cd468cf2232d7c4ad5b5. Chain 2 (Bitcoin): anchored in block 958711 (2026-07-19T09:26:32Z), 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/BRIAW2000010.
Atalho / Romance Dos Astros / Falso Herói - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53ee30d3f4fa27616091fbbee00b01c011472f81330be1a8a115af93df1cc196. 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/BRIAW2000011.
Vale Tudo / Descobridor de Sete Mares - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72694d296f7895a802201bf5a829afe54d7ba584e23a6caa97d7217807f0b299. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/BRIAW2000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ac95cddde3b72f53681a8f6fc27460f7f51774d44a2174256c9b2a201ecbb04. 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/BRMCA0300140.