Angelica Maciel
type: MusicGroup
popularity: 2
followers: 168
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35f7d987b916f89f8d5eff4be26633546ebc93e693741e2c28ec5b4f6ee7be33
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4754659-e511-415b-87de-3fe0cdda0451.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a4754659-e511-415b-87de-3fe0cdda0451.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a4754659-e511-415b-87de-3fe0cdda0451
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x35f7d987b916f89f8d5eff4be26633546ebc93e693741e2c28ec5b4f6ee7be33","name":"Angelica Maciel","registered_at":"2026-06-20T06:44:41Z","symbol":"NIM1544219","token_address":"0xdafffb7c83157bf57d8eb6f6eb56fab24114715f","type":"artist","uuid":"a4754659-e511-415b-87de-3fe0cdda0451"}
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 0x35f7d987b916f89f8d5eff4be26633546ebc93e693741e2c28ec5b4f6ee7be33. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4754659-e511-415b-87de-3fe0cdda0451.json and https://artists.proofprofile.net/proofs/artist/a4754659-e511-415b-87de-3fe0cdda0451.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x35f7d987b916f89f8d5eff4be26633546ebc93e693741e2c28ec5b4f6ee7be33","name":"Angelica Maciel","registered_at":"2026-06-20T06:44:41Z","symbol":"NIM1544219","token_address":"0xdafffb7c83157bf57d8eb6f6eb56fab24114715f","type":"artist","uuid":"a4754659-e511-415b-87de-3fe0cdda0451"}
album: Diante de Ti
  type: MusicAlbum
  date published: 2019-01-18
album: A Quem Enviarei ?
  type: MusicAlbum
  date published: 2020-09-20
  track: A Quem Enviarei ?
    type: MusicRecording
    duration: PT4M46S
    duration ms: 286799
    explicit: false
    by artist: Angelica Maciel
    in album: A Quem Enviarei ?
      type: MusicAlbum
      date published: 2020-09-20
    isrc code: QZMZ92090034
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T15:03:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x39d68d53f56f1b9ffc9823f77fdbf888114f6c65ddaf2dc3026e09a1470ba52c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958903
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958903
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZMZ92090034
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T18:03:38Z
    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 0x39d68d53f56f1b9ffc9823f77fdbf888114f6c65ddaf2dc3026e09a1470ba52c. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:03:38Z), 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/QZMZ92090034.
      date published: 2026-07-20T18:03:38Z
    audio: A Quem Enviarei ?
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 122.244
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.467
      additional property: Energy
        type: PropertyValue
        value: 0.494
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.572
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.193
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.191
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.585
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Diante de Ti
  type: MusicAlbum
  date published: 2021-05-03
album: Dono do Tempo
  type: MusicAlbum
  date published: 2022-06-20
album: Novo Tempo (Ao Vivo)
  type: MusicAlbum
  date published: 2022-07-23