Mc Joan Jf
type: MusicGroup
popularity: 7
followers: 85
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x780dc4c501ef725e14795c927abb8145274a3a4194d1a9364ccc6b69ceee4301
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/824cdd78-4cf1-4e7d-92d6-481f882b5abd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/824cdd78-4cf1-4e7d-92d6-481f882b5abd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/824cdd78-4cf1-4e7d-92d6-481f882b5abd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x780dc4c501ef725e14795c927abb8145274a3a4194d1a9364ccc6b69ceee4301","name":"Mc Joan Jf","registered_at":"2026-06-17T11:27:51Z","symbol":"NIM1381129","token_address":"0x066100c322f365fb9cad0025efad2ccc8c9ce033","type":"artist","uuid":"824cdd78-4cf1-4e7d-92d6-481f882b5abd"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x780dc4c501ef725e14795c927abb8145274a3a4194d1a9364ccc6b69ceee4301. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/824cdd78-4cf1-4e7d-92d6-481f882b5abd.json and https://artists.proofprofile.net/proofs/artist/824cdd78-4cf1-4e7d-92d6-481f882b5abd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x780dc4c501ef725e14795c927abb8145274a3a4194d1a9364ccc6b69ceee4301","name":"Mc Joan Jf","registered_at":"2026-06-17T11:27:51Z","symbol":"NIM1381129","token_address":"0x066100c322f365fb9cad0025efad2ccc8c9ce033","type":"artist","uuid":"824cdd78-4cf1-4e7d-92d6-481f882b5abd"}
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  type: MusicAlbum
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2024-07-29
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  type: MusicAlbum
  date published: 2024-09-11
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  date published: 2024-10-17
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  type: MusicAlbum
  date published: 2024-10-22
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  type: MusicAlbum
  date published: 2024-11-11
album: Mina Gostosa
  type: MusicAlbum
  date published: 2024-11-11
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  type: MusicAlbum
  date published: 2024-11-28
album: Automotivo Novinha Safada
  type: MusicAlbum
  date published: 2024-12-03
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  type: MusicAlbum
  date published: 2025-03-06
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-07-10
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-10-15
track: O Novinha Se Prepara

O Novinha Se Prepara
type: MusicRecording
duration: PT1M50S
duration ms: 110769
explicit: false
by artist: Dj Medinna
by artist: MC MT
by artist: Mc Joan Jf
in album: O Novinha Se Prepara
  type: MusicAlbum
  date published: 2023-11-06
isrc code: BKEP12300156
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-23T08:57:54+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaaeb9a27072f402e98ea113c2631ec61e8b8bf794f98c883f290f1bfc8675724
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKEP12300156
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaeb9a27072f402e98ea113c2631ec61e8b8bf794f98c883f290f1bfc8675724. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/BKEP12300156.
  date published: 2026-07-02T05:09:12Z
audio: O Novinha Se Prepara
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 138.398
  additional property: Musical Key
    type: PropertyValue
    value: 1
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.876
  additional property: Energy
    type: PropertyValue
    value: 0.896
  additional property: Speechiness
    type: PropertyValue
    value: 0.173
  additional property: Acousticness
    type: PropertyValue
    value: 0.354
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.151
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.753
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.262
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major