Mário Lúcio Sousa (born October 21, 1964) is a Capeverdean singer, composer, writer, politician and a painter. From 2011 to 2016, he was the Capeverdean Minister of Culture. Biography Childhood and
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 0xb07f5fb9c8225e51e254f54ba316ee5ee3303736f084874a536a9986021d4589. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b1ca855-76b6-461a-b3b9-217ca9f23c0b.json and https://artists.proofprofile.net/proofs/artist/8b1ca855-76b6-461a-b3b9-217ca9f23c0b.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 0xf59604e81ceda271bdca28fbe9f3bf903ca27e438f9107b320315ea42656cf32. 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/BCKON2100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda4253cf569cb257f263b9cd1d1901c03621a2f12d23a388e2d216e50d8b9b09. 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/CVMRM2400071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc905bd242bfb261c2925fd5201629097757a01855eacae3dac65e974c66d244e. 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/CVMRM2400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71bcc96c74f487ae83dc74aed5eb4d773dfa5d2aef327519a0f1770ce89cc426. 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/CVMRM2400073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x564f4bd743fd5cdee8d45f51a170e29725002560f34ff52bbe61d7ac1342d936. 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/CVMRM2400074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0db16a067593c4bb9e8184ed4eb0ab7c2a7944ce0006bc0146a80b7748ff1c0a. 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/CVMRM2400075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d5dc7b4659a7e212c62dc52172bd6801cb58d45adb380f1681896b77db41888. 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/CVMRM2400076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x040bbe491df13742b9d7bb6a69268ca64ec47dfdb91c0a455709c0c3f04dac7e. 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/CVMRM2400077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57c39ed0edec784b862abf7aae296d42ba11a11f69ba86733f402e88277703f5. 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/CVMRM2400078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5812793ddf97f49b2b95a8e3668895de13d6062b29c0f247265312330e38d0d1. 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/FRZ550200001.
Cretcheu (Mario Lucio com Coro e Orquestra Gulbenkian)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb89542d673a343540dfce1e69a42a55170e89e41e1d0bf2c9f01062ad1f96f55. 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/BRNTC1800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1adb16c7ba9a2e44684b8b01c823e6072b5fee7a9ad8f5780d4af4a3b1714bb4. 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/BRROF0500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed5431e626b836a44afc68471fae5292d3f9a1d9168bdc6bd507e0c53823a097. 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/BXNTC2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf80ece7e91418499c7bc8949d337d405a209a913861c1b1a61bd30d3be3ef36c. 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/PT4JG2200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa51e09a1b7b78d794d4bc3e3c923169f315c7401395fac3c35a5750a0aca6a94. 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/CVA002500547.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29d873d8f0acaaaa791fd45a5542d307118f8069dd0fbf7a8cbeb41965bdf3f9. 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/CVA002500548.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2fc56aff13250eb67b72f02c9e3ddb7d6cc3da4579ad469aece13900a865967. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/CVA002500549.
Mensagem (Poemas de Fernando Pessoa e Músicas de André Luiz Oliveira)