Marisa Liz or Marisa Pinto (born 22 October 1982) is the lead singer of the Portuguese pop rock band Amor Electro. The band's repertoire combines rock music and electronic music with traditional Portu
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 0xee6245a4b21c2532ef4e67178e77a0edbdd92a3fc63eb8ed80bed49ccb746614. 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/a88bd246-b01f-445a-8287-9626b350a095.json and https://artists.proofprofile.net/proofs/artist/a88bd246-b01f-445a-8287-9626b350a095.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 0xe548a963cee869360e96c9df816f184d9f2d8f96035f799b3d7b4b5b937d129c. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), 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/PTUM72200262.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde0a8baca82b28493718051457852d4a3048ebb5a5429ee6ad4ef60b75c39b67. 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/PTUM72300048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b1db8927ff7141d17f0dfe40ea9e3d3cf2db4340e0c6cd612dbadb8e4eb60d9. Chain 2 (Bitcoin): anchored in block 958366 (2026-07-17T04:59:09Z), 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/PTUM72300049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ec6c7a8850c7436cc43194806e2347641c0581f3d15e9dc18ebaec55d43cf38. 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/PTUM72300050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4bf3722d80feb456ca3489bfb63c4228f0ce70d97aae08d5e3c96c4fa852ebe6. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/PTUM72300051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91d4901457acdb53d9159999368f9d6fe6d4d4e0f96026761b65952034ad72de. 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/PTUM72300053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc6132fc8b7676259d02165d09b9168e2922e0148910ec7e21317be456f0ebe8. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/PTUM72300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c1c5d8651143caa2b5e3c1afea67f11c5d6d36c4ef289dd74f9d3098b87cbb7. Chain 2 (Bitcoin): anchored in block 958573 (2026-07-18T15:49:54Z), 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/PTUM72300055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01090a0f1ac8fb1c1c1e27ac5cf9a5082fd8ed0bb067c68c3c49c00820d6bf61. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T02:46:47Z), 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/PTUM72300332.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x070ebca7975de775b47a9b394e661143a5dd3437260f18c3009d1bbd2131b679. Chain 2 (Bitcoin): anchored in block 957805 (2026-07-13T04:34:37Z), 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/PTUM72400009.
Trigueirinha (feat. Carolina Deslandes, Jorge Palma, Mafalda Veiga, Marisa Liz, Ricardo Ribeiro & Tim)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd13694760cf1b3e440531065c83e2773527b654c142f78a1332ae32cec267fe8. 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/PT4EG1800015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab8186e274431343f03de13ce41bfec451182df37cc7355e0b8b6641a69d4d6c. 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/PT8HR1900011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548f475c796b51cc33a25a6c99347dea48fda5653ea91277b5196fc89b19a966. 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/PTUM71700146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x548f475c796b51cc33a25a6c99347dea48fda5653ea91277b5196fc89b19a966. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/PTUM71700146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d85090e2a33dde4d20ce4156329b36b171c53faddfa5e3f85fb0179d987c394. 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/PTBM21300026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7016021cb924f8e080cc4fde2ba2f3db71c067ef85cbb5e3f57f95058553a6d. 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/PT1Z22400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97911f7342638df8bb83084e5fccec9ff3f54be4ef03fa43507b4ea96edc7fb0. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/PTUM72300068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf46b1e348bb12bec3c44abca03d8f3a7be1ce320e19648d5c82077b331da7d1b. 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/PTNS12000001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e7837f5231db8609810b8571c7a0745060b7fd9785229f1050ad47a871f82fe. 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/ES71G2335153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88070329d1d7f876ab6d5c1e9140d8dcec6fa7337515d99538f999aac731d6bc. 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/PT7RR2300036.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631c85b6017bd63195fed450ffa065ee240304632702a232e30ecb66de70b6ba. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/ES71G2331270.