Ana Matos Fernandes, better known by the stage name Capicua, is a Portuguese rapper from Porto. Biography Ana Matos Fernandes was born in Porto, Portugal, graduated in Sociology in ISCTE and got her
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 0x0756428017088afae4d67d0afa576b7a8d9fefda9b2674fcedaa7ab6b684a9ef. 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/208c9e4b-3a26-400d-abd2-ef609df3d28d.json and https://artists.proofprofile.net/proofs/artist/208c9e4b-3a26-400d-abd2-ef609df3d28d.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 0x67702a616d959e32c0bdb14ad2b12a4b24f3f80be15ba787d6465b37c3b86925. 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/PTNS11800064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d5a106502c3cef7451c0c0133be1d36c4a1f1783205a5a4130d7ad92d517fd9. 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/PTUM71900276.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f756d2e7e1146c6be7521878f751464b97d39f3d60403d7b9b8902842fb3a. 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/PTUM71900275.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x454d8d8a789aed0edf0f1d348a4f6e66b60abdfb911fc311837e91b35fb757c0. 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/PTUM71900277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f71a81ba0afdd9c8b4ea86ae335a4dcad6264cea110edc03aaff8344187ad1e. 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/PTUM71900278.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fd39fa2704fa5b727a652c47b4f3c7fe7574822accaa7871e5864591758ce90. 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/PTUM71900279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4d893eae703d56ec58c7e4a2ae18d96db51fd454de24faaa523d97a637869c. 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/PTUM71900280.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4b2e883261528a9c3e918e902686577b9ef9d91b2507a69b534a07a6c61fe2. 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/PTUM71900281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x273327f41d7c6dc200db2e562e92eeceefa2097799e95f4625e1f62e4e050be4. 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/PTUM71900274.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x027a1e771947c2ac8614dd900f5019ce2059b6b34bfab02f98a6f7598d2cf856. 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/PTUM71900282.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x643e6a4518768ecd6ad8b873981b69825ac3536720efaa1d04111cf4963ca5c6. 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/PTUM71900283.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97aa8fefb8aaa74069fe191ae423e2de03b9ffa82a7733d5ac7c10b4a12df17b. 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/PTUM71900284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe30e7dbf7c65205f5e58f63b88282b8b3bac959fc9128797c3770823cca2477. 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/PTUM71900286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cbc325c7c7934891f47ae206ca3e6a34a151068367b47cca593d3319c09bb3b. 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/PT8HR1900016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fb9c5bf31a2609097d7187c3c8c336df3c5a78128863e168d9723f68f293106. 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/PT6JR2200074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa13619f99a24dda78c5312f5d749bbd2ffdc31f87936cc0205a9f74636ba0d80. 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/PTNS11300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69f7968119d37405d708f677a7fde79cb74d1201ff9f4dca96801640788b5558. 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/PTNS11300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb991c9a42163f9cac6fa702ecf3865c45a57f404fb01345c1a025888110ab6e6. 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/PTNS11300015.