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 0xa039bb500398478f30d2edc7df80ea0b7f90af43d361c04f69590f6895d8edc4. 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/0a831390-30dc-4beb-a224-a863779299a2.json and https://artists.proofprofile.net/proofs/artist/0a831390-30dc-4beb-a224-a863779299a2.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 0x67a6da81fd0e8720bd84a73389a7afb66ab16c84ea95a4f6f1a509b27c2d56c5. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/US7VG1700071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x122c4ecda8bc30b8d185c08c365d5ee91b2c33428e6c69a3076698cf0c051ec1. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/US7VG1700069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a055ddacba6a5b110f94b1b49ddc6da9979678070e872c616cf02d9b14557a. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/US7VG1738588.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76314fb69179f75ac8615c98a9f1b63ea796b9fb57be70b915785ad1eaf4b6ca. 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/BX4VH1800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24bf131f6929d05867a5e80a9b95b60ba283815036340ec40ed96b7f48639252. 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/BX4VH1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf28b40141209f5a6911d65513937c8a13ce9a9377615ddf41a59d9f49f9190ff. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/BX4VH1800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18a7b2c0407943227e057ba0d4708ff7ff10e4c76d7601493a389aae5d84f4c6. 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/QZHZ41900178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bafb30a8414f47241dd25d18634aa593ee97c4b79748904ea151c9347763450. 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/QZHZ41900151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80d98bba932f9110a72b85f8742536e113d48cd1eaa6f7b525d96c232fe90b83. Chain 2 (Bitcoin): anchored in block 958627 (2026-07-18T23:33:54Z), 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/BXSSW1802392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x026d11411f8e0371053c127ef2d0bb0f82e3c0caf5912abb971134cd922ee9b8. 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/BXSSW1802394.
Ligando os Fatos / Deixa Eu Te Querer - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa0de22e80549bd678a9fbc441cdd5c2cb55e11a0755384becd36da7e9f1ae80. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/BXSSW1802396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd24d704e47a12d9ce65aa327b2dbd3ec64c3090e70a94688f5dfa32c712cd76c. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BXSSW1802399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x295ddfa98b26139c9e8208acfd30d571caabfc816181baa9f56aa6b1b106524d. Chain 2 (Bitcoin): anchored in block 957852 (2026-07-13T11:25:45Z), 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/BX4VH1900026.
Até o Sol Quis Ver / Céu e Fé (Acústico)
Quer Me Machucar / Vou Te Procurar - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x312f203010b97236eacce42a9e7c07dd893fcba45dc60473f13311f9652f4450. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/BX4902000006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983590273aed125e1e6889111bbdd78d74e547a9ccdb274d5550d6e8c51d86dd. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BX4902000005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f6648fd89652358c998672afa4313259dfa1e302efe19203c29605eced980d9. 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/BX4902000007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1386847a9689e41c19f8fa6d88093b6d38c2b1178d263987efb1f612189e550b. 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/BX4902000008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1147b5e386d5b833caae899f6304c921c7abf49a28a232f4c7de8930c6d0bf63. 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/BX4902000011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e055b7f7edd82d0f58b31e6f054509d84bcd3644e97fd922008d17781d8cd9. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/BX4902100002.
Mundo dos Sonhos / Que Dure para Sempre - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb855a6b2918cc6c2b83f782e3dd964b677e3d3bb2e7fde8177fdda57a7e9a13e. 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/BX4902100011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2617c0bde4eb3f17dd7f2890bb031fed46fdaafef44a1619bc8c3c9e75ac226d. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BX01B2200172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb860bc51c97414b8b93db87aaa9d80d43e2db0c41bbe6fd879072e2784d8c1cd. 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/BXSWA2300046.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5afa017568d9b83326cb227a7f054279a71620b3cd2f5640eb0e641c0667ac4a. 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/QZNJW2325328.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819108df095df8bcb6257379878fc0836c044b5c8e9bf9eff5cc7421f171b374. 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/QZZ662467421.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3488a9a36bb359d6a25bdc6ec5cf440f5c2e3d877c8cb9ddd08c0b6419876fd. 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/QZZ662467425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819108df095df8bcb6257379878fc0836c044b5c8e9bf9eff5cc7421f171b374. 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/QZZ662467421.
Papuzada - O Seu Pagotrap Preferido (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b8dda37c5fa688f150f8f0fa238f69aff0fd5f95ec4ce7669d0090a7c604131. 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/BCO3K2300178.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a8d2b2e7181a296e98329eeb47576e16f5a4bf9ff5af913778a8c9bca8e640a. 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/BCO3K2300209.
Quando É Amor / Temporal / Meu Jeito de Amar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa45e75be07da524cc56180ff830a5a34a5cfce8d43fb63efccc8728b308401b7. 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/BXSWA2200006.
Incondicionalmente / Amor de Verão / Timidez / Quando Te Encontrei
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21f6fcccf443c8d89f12b62e23618d857f8f6409f5cbd1341369516f4651327c. 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/BXSWA2100005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcebe515100fef0b093b91b7a74bddd9a7b6ab1411d52ca6642eb2c792917aa5. 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/BCFSC2100003.
Seja bem-vinda (Participação especial de Vitinho) - Ao vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaa1c32ca2483cc90ee55eb1ade8abdffe089faebc0898ab9f8f2d984b0869c5. 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/BRWMB1900155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5012ef0823795b3e9810e6e53cdf758722c1a44b3cfa8e9bd5d9548e5fe3284. 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/BRYLP2200112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09257bc5594915f6c45418ce6910693ac6f0be85ac6c54bb118c1830e1226ad4. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/BRYLP2200113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa77aeb07926bb0c0edcf20e958e92d85433efffa9ad65ebc1e9014370f3cc66f. 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/BRYLP2200114.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc7cbebb606b13d34cdee1c40c5aa3e509ab737d29f3bab7a5305fa0dcb836f. 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/BRYLP2200109.
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 0x57c56a88c3568ed51ed7b6f8cd725fc3f03607d019f12f04157ee78dbc0de4b4. Chain 2 (Bitcoin): anchored in block 960164 (2026-07-29T23:23:05Z), 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/BRYLP2200110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27a0adb6a18315ecb09291269bf77ddb34dcc0bf5dccd1e0b7ae1d0fa939fbd2. 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/BRYLP2200111.