Matheus Santos Carneiro da Cunha (Brazilian Portuguese: [maˈtews ˈkũ.ɲɐ], born 27 May 1999) is a Brazilian professional footballer who plays as a forward, attacking midfielder, or winger for club Man
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 0xbb4b0755645ff3fd153443a69281906d68adf72ef57aded19e6949d26e542b86. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9c4b6192-3575-48d3-a493-a69ff7cbe014.json and https://artists.proofprofile.net/proofs/artist/9c4b6192-3575-48d3-a493-a69ff7cbe014.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Salmos 24 + Subindo o Monte (Espontâneo)
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 0x7425b0ba3d7b2e93d46fa3ffd18aee5d627a27f9f506f6bf42246d141b61df61. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BCMB52500006.
Que Salvador + Nos Resgatou das Trevas (Espontâneo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa156e8014ae0d9a025586b72561361b121dec4fcc7b906a03fb32849c6734075. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US7VG2235532.