Mc Marcinho
type: MusicGroup
description: Márcio André Nepomuceno Garcia (11 November 1977 – 26 August 2023), better known as MC Marcinho, was a Brazilian singer and composer of funk melody. He was famous for such hits as "Rap do Solitário",
popularity: 4
followers: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4a87277f3fc32a7597d6e0afcf32d3bb08b962355377e1f7da56decf767f1a6e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953985
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953985
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d3adf25-d23f-4782-b215-68d421acb085.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2d3adf25-d23f-4782-b215-68d421acb085.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2d3adf25-d23f-4782-b215-68d421acb085
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:03:53Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4a87277f3fc32a7597d6e0afcf32d3bb08b962355377e1f7da56decf767f1a6e","name":"Mc Marcinho","registered_at":"2026-06-16T05:23:25Z","symbol":"NIM0950617","token_address":"0x0b480e182a5972f5afe981ec4fa0502caf995c22","type":"artist","uuid":"2d3adf25-d23f-4782-b215-68d421acb085"}
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 0x4a87277f3fc32a7597d6e0afcf32d3bb08b962355377e1f7da56decf767f1a6e. Chain 2 (Bitcoin): anchored in block 953985 (2026-06-16T18:03:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2d3adf25-d23f-4782-b215-68d421acb085.json and https://artists.proofprofile.net/proofs/artist/2d3adf25-d23f-4782-b215-68d421acb085.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T18:03:53Z
  text: {"copyright_id":"0x4a87277f3fc32a7597d6e0afcf32d3bb08b962355377e1f7da56decf767f1a6e","name":"Mc Marcinho","registered_at":"2026-06-16T05:23:25Z","symbol":"NIM0950617","token_address":"0x0b480e182a5972f5afe981ec4fa0502caf995c22","type":"artist","uuid":"2d3adf25-d23f-4782-b215-68d421acb085"}
album: Glamurosa
  type: MusicAlbum
  date published: 2012
  track: Glamurosa
    type: MusicRecording
    duration: PT3M57S
    duration ms: 237122
    explicit: false
    by artist: Mc Marcinho
    in album: Glamurosa
      type: MusicAlbum
      date published: 2012
    isrc code: FR10S1650219
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    additional property: CopyrightChainExplorerURL
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958388
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR10S1650219
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T09:14:21Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79c60e1f4e620a9789204e8075b8ef78454b19dfec7fcb7e750e1ec5b2fcc3ee. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/FR10S1650219.
      date published: 2026-07-17T09:14:21Z
    audio: Glamurosa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.077
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.848
      additional property: Energy
        type: PropertyValue
        value: 0.691
      additional property: Speechiness
        type: PropertyValue
        value: 0.046
      additional property: Acousticness
        type: PropertyValue
        value: 0.144
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.083
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.925
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.465
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major