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 0x000ffff92c7859538fe8836906017ada64d1eb9bff0a448942589670f5c28e5b. 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/7dbd1246-565e-4793-8c7a-8bf63fbc100e.json and https://artists.proofprofile.net/proofs/artist/7dbd1246-565e-4793-8c7a-8bf63fbc100e.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 0xa85ef415655a795be50613844c60a71c70def2a1fe3d64adf4752a58ee6c6a6b. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/BRDM30800024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f857e9a17c012ee8b359e0931cfdbe567398af6c0782553764db60e54c727a0. 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/BRDM30800031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9313e7d090663ade07d8ef0fa372e6ec633c0d67496ec7e3d9ee9a9d1b638a1e. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/BRCVD0300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc81e341917f35c86595d1d43888e98b9f71d4da3d6bd3b8a23352501de4bf3d6. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/BRCVD0300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67be7ada9612a253aeee61fcc02300482e58282a2e779ab31e93567994711211. 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/BRCVD0300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc15a32d78cbd701f789c1fb7ac20b911f893cc8577f9651f4f40d52890f50787. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BRCVD0300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ef724658a0692ef8555241f0ff1ce18ce3392203eecf18ee3fc7c04401febc6. 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/BRCVD0300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fcbb37bd5651b0623963064bdc6ae3a2527e4aee0e75dc67e82d479c722859. 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/BRCDV0800007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36df02616db50c221420c90f3fe59a3ef62cb6125e1ed657dfb8975a1a4ae287. Chain 2 (Bitcoin): anchored in block 958579 (2026-07-18T16:26:17Z), 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/BRCDV0800002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dc48e0afaf16bb990b091c932916cd604fe4f07e9e1f06e77fac4460889a80f. 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/BRCDV0800009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae8b94319d5b9d10e918a0b27de6501f9c1a1900d8f064efc459160f769e356. 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/BRCDV0800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd968c5d89d97b45c9bbf01c12ec39fee7776c78bc1caf00b78d3649ae0ac2673. 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/BRCDV0800008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a56f67cb5e9121698f76726dd578f5a627a9982b82ed23f5fe44a74cd7bc5d. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BRCDV0800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dbd06b0319da31e7aa853b72ca34c014ed40974aaaa79ade61a4dead990fd92. 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/BRCDV0800011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d77bb26e44ef27e91ca3f300613456f6d082c7b9d36e604c086b0c8108e93cf. Chain 2 (Bitcoin): anchored in block 956861 (2026-07-06T01:57:57Z), 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/BRCDV0800010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ec26a648cd6c63d9b3e1ad6cd9517cde0f537f4a3ffe385698b32005e1345a1. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), 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/BRCDV0300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fe564d2f2673f633b0124ae9e53d35cdb5072bacb6c5a40301721a365a30c1. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/BRCDV0300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f953ca75a9cb634a8d93436c928ab3a15414a02c56a4abb47750f8b296418e8. Chain 2 (Bitcoin): anchored in block 959144 (2026-07-22T15:38:35Z), 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/BRDM30400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3049b4e2710e9e00a4b8e0433de3a437a6151f1ff40abaeaa5c7485c74aa2a09. 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/BRDM30400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2371314d501b882fe3f606c688cfe1e98bd95174200308eaf7b6a3eb9e8005b. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-21T22:56:27Z), 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/BRDM30400006.
A Cia de João Batista: Preparai o Caminho (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3cd57cab34662bdd9531308fb2dee59ae79e35a8e7beca8bb7c69bc5da8e933. 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/BRDM30500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2309e20418b07c85063d0d3b84d267bdb591398923bce714c424c367756a80e. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/BRDM30500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8d94d0a5be6c6697689cd4c22093f942f21e27af9dda71107f0e2f6b38d961c. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/BRDM30500011.
A Manifestação dos Filhos de Deus, Vol. 1 (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb1caf33ded0e959ef2c8b6114280679d7f745211b7e683364cdd2939dc5f3a. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), 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/BRDM30600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3392a7862d22382a88a1e7efe061401473da3ea8f6494c72d43d3cd3aa29f219. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/BRDM30600004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d3f0bea91da46628fb888316228141e08ef0793b36dd4734ae6d5bbf9549116. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), 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/BRDM30600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f9a27f8a0ebeda35362ef69f319d4c107f4933138a44647f66b9a09543052. 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/BRDM30600008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc784c978404fdd1d4aaa1c4e46dcabbf514dd92d60cf378448b0c1d0d21d3b98. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/BRDM30600009.
A Manifestação dos Filhos de Deus, Vol. 02: Dependo de Ti (Ao Vivo)
Levantou-Se / Vem Vindo o Rei / Eu Creio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd48db2180a84fc711e871541085d094d507167ea67d481e172c0503130084686. 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/BRDM30900003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6374c8c93da78f554ba6a93329be0fef04ac330dacc65ede0531fbe011183b9. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/BRCVD1200003.