Matheus Brasileiro Aguiar (born 11 October 1993), better known as Matuê (), is a Brazilian rapper, singer and songwriter. He is best known for his singles "Anos Luz", released in 2017, his 2020 album
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 0x742ce083f73406c030c01aff0d7767a7e9de8650121dc3470768a5546d2bb8aa. 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/4679a863-729b-4936-a6f3-50d2b570f2e8.json and https://artists.proofprofile.net/proofs/artist/4679a863-729b-4936-a6f3-50d2b570f2e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sensacional (feat. Cacife Clandestino & MC Kevin o Chris)
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 0xe2f3408d973d45f2e8d48181c83d37939a0bb937d486ff873c130d0adb836865. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXW6U2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5326fc0e541f07243fec06f8374752f48c596197f848efddd0e79223cd0f9f. 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/BX2M81900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6049cbb3b79270e76084c46e55de2eaaf285278c9b122970071c41d6cc6bfc46. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXS381900015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4b7c965153108103f97bfe85cfd29cfc61b7e432aba32247116366a5dd4232. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRD1E2100097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f8d8925c18a94fa8081ddde342e739466eba58cbc9668445ef97f5bd03899b. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXW6U2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58ae254f537a6e1d4b21899a39513651b3ec4a2c2233b9169fe5f809e83108b7. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZHZ41970534.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c5326fc0e541f07243fec06f8374752f48c596197f848efddd0e79223cd0f9f. 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/BX2M81900002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe070cd6b4a56d03368bc3229b81530e5c54d375b74e4c6061b0ca0287d9a2647. 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/BXIH81800003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaba4efc0ad042f01a5c24330f6d2db26cb94e3bc589361e87323de5c9a6fa1d0. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/QZ5AB1752014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x366c429db2713c7a6528413dcc3d90ec4faa89e25ac51e97406d848ab56c73e9. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXPOB1800029.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa15b3ade90b396416cdfb84793e43f728d24aa28d80946e85ec6abf3cc35cd87. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXIV81600068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c8de59ad7360c554c86685eeb69b1d7105fb67b751c4d021d04179ddbc761f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRUK01900056.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5420dbc631913786c0a245dbd5f04461e5de9be938bb41c66eb96cda0729902d. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BXW922400149.