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 0x70f8a073c62bb8312ef1fed66cb9b24b4200782687d3bf565f4ce6661015bd70. Chain 2 (Bitcoin): anchored in block 953602 (2026-06-14T06:58:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0e919ad1-de9d-424f-afe6-38a503e2ef88.json and https://artists.proofprofile.net/proofs/artist/0e919ad1-de9d-424f-afe6-38a503e2ef88.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Abda Music Coral e Orquestra (Aniversário 2018)
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 0xbbcfe051b6b88db1216f79d7ab047321c570040df04aaefbcb255434366c64c3. 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/CH6542386701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe92029546270f82079e1ab346dc0124a4f44ea452bac4cfdca34e8ea330d52. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/CH6542386704.
Espirito do Vivo Deus - Aniversário 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d2548fb39a8b90e1de35d1187c78136599df3c57a4d19ac033244fb7ec8eb95. 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/CH6542386702.
Este É o Dia Que Deus nos Fez - Aniversário 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd663e231ce6b53a8e86429bb2739fca30f9cd8f08b3a242fe456efb67b00b4cd. Chain 2 (Bitcoin): anchored in block 956862 (2026-07-06T02:10:22Z), 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/CH6542386705.
O Melhor Lugar do Mundo - Aniversário 2018
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a99e1e7d84868c0ad27bdccd85d0df7b8728ad97e4df6c5e30c70f43671b512. Chain 2 (Bitcoin): anchored in block 958722 (2026-07-19T11:03:50Z), 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/CH6542386700.
Harpa Cristã 121 - Maravilhoso É Jesus - Hinos da Harpa Cristã
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6092ec351783d9dacde75738b4a69a9c7d84151d2d8147b557be70d5fbcad4af. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:38:35Z), 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/CH6542418607.
Harpa Cristã 141 - Guia-Me Sempre, Meu Senhor - Hinos da Harpa Cristã
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f2e2006a1c0d28278406ada5a256b34a83303ddf019f602a37cdc8b7728c691. 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/CH6542418604.
Harpa Cristã 295 - Novo Canto de Louvor - Hinos da Harpa Cristã
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e9250c8609856dcf930d79569f22f6430248e5b9f1b5e352b67eb3d55775462. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/CH6542418606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d62163930f73a0a4f04ca3574325f2175dd3ba50ca528d46292d701bfc66c33. 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/CH6542486261.