Érika Machado
type: MusicGroup
genre: brazilian pop
genre: nova mpb
popularity: 8
followers: 1354
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1942f26b37ef9b326d487c6f67499280d108f49cd8978161cc82693236527a5a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953915
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953915
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a7891fd-5664-4db2-8920-89c7973d2881.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1a7891fd-5664-4db2-8920-89c7973d2881.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1a7891fd-5664-4db2-8920-89c7973d2881
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:36:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1942f26b37ef9b326d487c6f67499280d108f49cd8978161cc82693236527a5a","name":"Érika Machado","registered_at":"2026-06-15T22:50:03Z","symbol":"NIM0856657","token_address":"0xba240173b50d2349640fc896bf80ff44d3176feb","type":"artist","uuid":"1a7891fd-5664-4db2-8920-89c7973d2881"}
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 0x1942f26b37ef9b326d487c6f67499280d108f49cd8978161cc82693236527a5a. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a7891fd-5664-4db2-8920-89c7973d2881.json and https://artists.proofprofile.net/proofs/artist/1a7891fd-5664-4db2-8920-89c7973d2881.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x1942f26b37ef9b326d487c6f67499280d108f49cd8978161cc82693236527a5a","name":"Érika Machado","registered_at":"2026-06-15T22:50:03Z","symbol":"NIM0856657","token_address":"0xba240173b50d2349640fc896bf80ff44d3176feb","type":"artist","uuid":"1a7891fd-5664-4db2-8920-89c7973d2881"}
album: No Cimento
  type: MusicAlbum
  date published: 2006-06-03
  track: No Cimento
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166466
    explicit: false
    by artist: Érika Machado
    in album: No Cimento
      type: MusicAlbum
      date published: 2006-06-03
    genre: brazilian pop
    genre: nova mpb
    isrc code: US7VG1588346
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T04:15:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf0da5ca58284bc5ba17e9b8cbe5f3e02ae36bd860de218a6c1ecdab909270910
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958238
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958238
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG1588346
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T07:10:03Z
    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 0xf0da5ca58284bc5ba17e9b8cbe5f3e02ae36bd860de218a6c1ecdab909270910. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:10:03Z), 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/US7VG1588346.
      date published: 2026-07-16T07:10:03Z
    audio: No Cimento
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 150.068
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.573
      additional property: Energy
        type: PropertyValue
        value: 0.621
      additional property: Speechiness
        type: PropertyValue
        value: 0.025
      additional property: Acousticness
        type: PropertyValue
        value: 0.171
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.191
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.441
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.446
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Bem Me Quer Mal Me Quer
  type: MusicAlbum
  date published: 2010-01-26
album: Superultramegafluuu
  type: MusicAlbum
  date published: 2015-03-09
album: Mais uma Tola Canção
  type: MusicAlbum
  date published: 2020-04-08
album: Devastei o Meu Jardim por Você
  type: MusicAlbum
  date published: 2022-08-21
album: Contente Sem Repelente
  type: MusicAlbum
  date published: 2024-09-27