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 0xbe1bac077ded71aec72411e778f4f33be3dcdcb5d98360ca38857a8becf2c052. 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/ec12e2b1-f562-4aea-95f4-d629c692b7f0.json and https://artists.proofprofile.net/proofs/artist/ec12e2b1-f562-4aea-95f4-d629c692b7f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Fazenda São Francisco / A Loira do Carro Branco
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 0xe150d0b6d427c24f31208cfae2a025f8472353e144632071b75a6e5f082fdc1f. 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/BXTRE2100095.
Na Hora do Adeus / Fruto Especial / Apenas um Sorriso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6048173438ee349e92775c2a51e5762b5dbab7fad66eb1013783c5b390d64d. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/BXTRE2100096.
Blusa Vermelha / Ainda Ontem Chorei de Saudade / Boate Azul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbf70a75b5dc7b693851f736955e33f300e1f5b24bf0956d7c8d83ee49b4ff2. 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/BXTRE2100099.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9ca8bff0579670e0955c65e26b8b1fcc2fbc13766e7414ba9bb05940c9dc53. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BXTRE2100102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1065189cb55d3ed1a814bed1292e8080c6dde37957d0e84599c7549d059334. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BXTRE2100104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe150d0b6d427c24f31208cfae2a025f8472353e144632071b75a6e5f082fdc1f. 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/BXTRE2100095.
Na hora do adeus / Fruto especial / Apenas um sorriso
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6048173438ee349e92775c2a51e5762b5dbab7fad66eb1013783c5b390d64d. 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/BXTRE2100096.
Ela chorou de amor / Mulher chorona / Vou toma um pingão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4834465acc9f55f57979f0d91950b4083fd3d49e32d2e6f5e82892cf93c9e64b. 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/BXTRE2100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e8ba17bd57d9492d7b0b7d1bba71c27c8a5968957b5dd7fad6ef919a2bce015. 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/BXTRE2100098.
Blusa vermelha / Ainda ontem chorei de saudade / Boate azul
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbbf70a75b5dc7b693851f736955e33f300e1f5b24bf0956d7c8d83ee49b4ff2. 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/BXTRE2100099.
24 horas de amor / Vida vazia / Agenda rabiscada
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbe847e970f82ae2490b9164f1b190c7ac50547bc5def30178c50b0c45f3a3f5. 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/BXTRE2100100.
Sonhei com você / Vontade dividida / Só da você na minha vida
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee582abaa54eef0fc6ea90ca25469158a78825c5670d69d1cb6b5c4a46905376. 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/BXTRE2100101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d9ca8bff0579670e0955c65e26b8b1fcc2fbc13766e7414ba9bb05940c9dc53. 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/BXTRE2100102.
Duas vezes você / Solidão / Convite de casamento
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41908837e73f9e26b8093445cadcbb532832b9c2a19d2bb4ad4b80a419568246. 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/BXTRE2100103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1065189cb55d3ed1a814bed1292e8080c6dde37957d0e84599c7549d059334. 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/BXTRE2100104.
Decida / Do outro lado da cidade / Seu amor ainda é tudo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bb4e9374c06c8f3fa6b346551754656fd244a9eaa6c910c212069f36d722aa7. 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/BXTRE2100105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa32ebffc2cd1f6cdeb99b900ccc185c1504ab8dfef2260254350c51ac0eaa4ab. 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/BXTRE2100106.
Lágrimas que choram / Ilusão perdida / Vá para o inferno com o seu amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf99970b5ee79dc82029338a4b03f7e038ffdf233cd65f7cb64be664a81f9f1. 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/BXTRE2100107.
Bijuteria / Meu disfarce / Acorrentado em você
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9203f78296c16a98e15ea130d8c1c268079b912b4f26b1c8bae79e207ebd5f1c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BXTRE2100108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d04aca3996d70abcb710d1c03273bb30b15dd7c08923e763381d53eef1de164. 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/BXTRE2100109.
Fazenda São Francisco / A Loira do carro branco
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a33583e785ac5161fba72d2564335237b3fb2beae03e745b765e93712478d4a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/BXTER2200117.
Lágrimas que choram / ilusão perdida / Vá pro inferno com seu amor
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4986110744051b5b92bcbd44ed6c21016cba564aa64622b54254e1c0cf44f2a. 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/BXTRE2200176.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4ff9d149447840254317333690635f9fb269a12bf76335a877eab4dfee0bd6ff. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), 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/BXTRE2300079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cde08460c98128759b2c3f83a0d8f6fb8829438973ce57417053b4dcfbb6ef7. Chain 2 (Bitcoin): anchored in block 958420 (2026-07-17T13:33:01Z), 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/BXTRE2400008.
Cópia Da Chave + Se For Passar Em Goiânia + É Amor Demais
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739f6e65de21f22690fc5c07014899bf190b0fbe8aa9d98e9a5cc80a2ee1d5da. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BXTRE2500001.
Liguei Pra Dizer Que Te Amo + Escravo do Amor + O Amor não é Paixão
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fd35c8ec29faec99d1ba9c5c825ba83f0c0282f169677386ad20898afd2abc. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/BXTRE2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57574d66f262f876e0ba429e8d92c26369ae5cae67f586e266c7e797ecd23f3b. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/BXTRE2500009.
Filé e Picanha + Bebo Pra Carai + Chamada à Cobrar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cde08460c98128759b2c3f83a0d8f6fb8829438973ce57417053b4dcfbb6ef7. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/BXTRE2400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69dd2ace3cbe1af39d772c08eb4f6dba4f4da47111e8072bf18cdbe4a5c5cef4. 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/US3DF2519675.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd14e214813c6dacaa3114e59978bc008ea25eca020f7919d9596607f1ce6c30a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BCMST2500009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x739f6e65de21f22690fc5c07014899bf190b0fbe8aa9d98e9a5cc80a2ee1d5da. 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/BXTRE2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61fd35c8ec29faec99d1ba9c5c825ba83f0c0282f169677386ad20898afd2abc. Chain 2 (Bitcoin): anchored in block 957779 (2026-07-13T00:19:08Z), 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/BXTRE2500003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513a918af90accf716e4c0d7378a0c0c35ec3319a358e1e57fabaf319b8c78eb. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/US3DF2504390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb77778aeebf3f64dc19b2e631e45c19b4d8ad4e63f9192b2e6b1544adf5207d3. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BXTRE2500007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fffe3653107b7ee6533ad4e443f3f008dd12594f1e6721e085d53c43db6f131. 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/BCMST2500005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d012be945bb2baa695b0f11c80178512a5f380d453d2a1b0816ded1efa5a559. 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/BCMST2500011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f948c3597906f6656b8ba9186f7b3b226dd99a4a1927fac92df1f8359539a90. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), 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/BRTW82100025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc015a0b619540dd4a4eb76bf56373a90b16a20a3ce57be4a91c44bcb77d92ac4. 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/BRTW82100035.