Lud Mazzucatti
type: MusicGroup
genre: brazilian hip hop
popularity: 20
followers: 525
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additional property: OTSBitcoinBlock
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additional property: OTSVerifyInstructions
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  value: 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x58c628a9c93a97774de5c969c4cce89385bb567f9b42351db10506f6a7ae7419. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f50cdb47-1cc7-44c9-8d7b-e4bccd33eb1e.json and https://artists.proofprofile.net/proofs/artist/f50cdb47-1cc7-44c9-8d7b-e4bccd33eb1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:45:15Z
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album: Eu vim da África também
  type: MusicAlbum
  date published: 2010-12-01
track: Cypher Baroni: Melhor Dia, Pt. II

Cypher Baroni: Melhor Dia, Pt. II
type: MusicRecording
duration: PT7M27S
duration ms: 447761
explicit: false
by artist: Marcos Baroni
by artist: DJ Kalfani
by artist: Lud Mazzucatti
by artist: Matuê
by artist: Mc Pedrinho
by artist: Mc IG
by artist: Lauana Prado
by artist: Edi Rock
by artist: Luccas Carlos
by artist: Tales Maneva
by artist: Joey Mattos
in album: Cypher Baroni: Melhor Dia, Pt. II
  type: MusicAlbum
  date published: 2019-11-08
genre: trap
genre: brazilian-hip-hop
genre: trap-funk
genre: brazilian-trap
isrc code: QZHZ41970534
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  description: 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.
  date published: 2026-06-13T12:47:07Z
audio: Cypher Baroni: Melhor Dia, Pt. II
  type: AudioObject
  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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    value: 5
  additional property: Danceability
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  additional property: Instrumentalness
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  additional property: Loudness (dB)
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  additional property: Key Name
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    value: B
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    value: Minor