Marco Aurélio is a Portuguese and Marco Aurelio a Spanish and Italian given name. People with the name include: Footballers Marco Aurélio Cunha dos Santos (born 1967), Brazilian footballer Marquinho
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 0xc8e0870b83f5fd0d6188e381a5bacc9db3dffcece433cfa53687bd83a376f92e. 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/a85f56dd-3af2-49ca-869f-e38a7f3135eb.json and https://artists.proofprofile.net/proofs/artist/a85f56dd-3af2-49ca-869f-e38a7f3135eb.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 0x3c0a46323a86593264c717c96176b2bf70814377c9ca6bb4d06c696eba2e4c79. 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/BRRPG2100140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe288c8ddcd90f01c97ae8ddf94a80f3394f2827257eecc26266de73cfe4450ec. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:58:32Z), 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/BRRPG2100143.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd72bb3ade0bbb7b26573f87efd46f0e4129f916c26004eecaaa361e20426852. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/BRRPG2100145.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec5fca01c5a99106534012b5d3801467c45c66b145ba9e334a09fe1f1eb2aecd. 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/BRRPG2000322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773ab67bd899ef3ce6d2da1584f7b7f0bd89a6043c06371471f9d6c039d55d34. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:19:55Z), 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/BRRPG0300679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b8b50686218d4081616ecba5ddc20722a2418d1e6ccc33cfc41a15c5b6b043. 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/BRRPG0300682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfe1e9ec1bfe9431ac737a8a64b5407ec709d5f32686cc770c14618bda79ac18. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/BRRPG0300685.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2f62209b034ee9cfda66b769925d5b105e098b9272e38ae8feb739cd940c71f. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T09:57:30Z), 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/BRRPG0300768.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8907b6a928f55adcd1a57ec1cb643d13f213f9c9e499019359e46910b451df83. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:47:39Z), 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/BRRPG0300772.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7f6a5a0d463a0121c001409602d84a1797c10833f74b72835a1883228569c2c. Chain 2 (Bitcoin): anchored in block 958329 (2026-07-17T00:21:18Z), 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/BRRPG0402322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2627f2ef9fa571891543031cf8ee98307e44d4efba1f28cf9a178e96ad7b47bf. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/BRRPG0300781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x791dc6bdd8d76a0b128ea095e0515d8d57412ed5af3f9d417b1232141321638f. 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/BRRPG0300687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf327a25069b42ed3e434bab9152d2a6eddc145c0b3ade161d3f871b197363abf. 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/BRRPG0402318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a4203c0f5198a6dad1beef282412e2dec8f59bf073b911404417b59aac9615c. 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/BRMKP0600209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x758c535a16b501bbbe9c426f3052a7e4b83b5e001acb2559a45285d6165987e2. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-16T00:34:34Z), 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/ES7931500160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47049b49a6a5eb4b45a80e49948e6767207c1e093350baadad782bdd7d786435. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:03:34Z), 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/ES7931500161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5f19feeb876e2676662d0f3e8250c59597d8d7b2c3090dfd0b3796d9eda9c7e5. 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/ES7931500162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16ab894b4f8a20b3eeb3a43a39ec788a1fc4691ea91123290389ec07308ae984. 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/ES7931500163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd483226a35f2eea55e8183224aab9ec93be24ddef20bd560697de205bbf78257. 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/ES7931500164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2db5c710e55e35c94162c6447d5e89a4dc88cea6ca6b4be29d6ace9723da206. Chain 2 (Bitcoin): anchored in block 959026 (2026-07-21T18:35:48Z), 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/ES7931500165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5095560128996df170cf5a85e40618dbaa850cceda0ed8a3ac45a8c2b3bd6582. Chain 2 (Bitcoin): anchored in block 958943 (2026-07-21T02:02:20Z), 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/ESA012489625.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28e99bd2047175809c82097ecbbfb2a200c5e710fdf6b89fc5078020440bb1d4. 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/BRMKP0400996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393ada9c8d1d9d0574805c673c8e7c4f094315c9456f5413f89b11c2c5949224. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/BRMKP0200114.
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