Dona Maria
type: MusicGroup
popularity: 2
followers: 318
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x760dc0cab195c1aead495a56f87fd756470f1fb44db49bd0b8a54db920de848a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953895
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953895
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ef8a712-a170-4827-94f4-63146fd63dae.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0ef8a712-a170-4827-94f4-63146fd63dae.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0ef8a712-a170-4827-94f4-63146fd63dae
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T05:46:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x760dc0cab195c1aead495a56f87fd756470f1fb44db49bd0b8a54db920de848a","name":"Dona Maria","registered_at":"2026-06-15T18:49:34Z","symbol":"NIM0799321","token_address":"0x364de630365b15fe7496525e5214a5499824e32a","type":"artist","uuid":"0ef8a712-a170-4827-94f4-63146fd63dae"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x760dc0cab195c1aead495a56f87fd756470f1fb44db49bd0b8a54db920de848a. Chain 2 (Bitcoin): anchored in block 953895 (2026-06-16T05:46:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ef8a712-a170-4827-94f4-63146fd63dae.json and https://artists.proofprofile.net/proofs/artist/0ef8a712-a170-4827-94f4-63146fd63dae.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T05:46:35Z
  text: {"copyright_id":"0x760dc0cab195c1aead495a56f87fd756470f1fb44db49bd0b8a54db920de848a","name":"Dona Maria","registered_at":"2026-06-15T18:49:34Z","symbol":"NIM0799321","token_address":"0x364de630365b15fe7496525e5214a5499824e32a","type":"artist","uuid":"0ef8a712-a170-4827-94f4-63146fd63dae"}
album: Chá de Camomila
  type: MusicAlbum
  date published: 2023-07-27
  track: Chá de Camomila
    type: MusicRecording
    duration: PT3M23S
    duration ms: 203382
    explicit: false
    by artist: Dona Maria
    in album: Chá de Camomila
      type: MusicAlbum
      date published: 2023-07-27
    isrc code: BRE9Z2300001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T07:04:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0ed9e17d63ff2747ece9aba4b451f7841dca0ddda9535fee43559a7ff934ebf1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959107
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959107
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRE9Z2300001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T07:19:23Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed9e17d63ff2747ece9aba4b451f7841dca0ddda9535fee43559a7ff934ebf1. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/BRE9Z2300001.
      date published: 2026-07-22T07:19:23Z
    audio: Chá de Camomila
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.9
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.643
      additional property: Energy
        type: PropertyValue
        value: 0.949
      additional property: Speechiness
        type: PropertyValue
        value: 0.119
      additional property: Acousticness
        type: PropertyValue
        value: 0.34
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.138
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.645
      additional property: Loudness (dB)
        type: PropertyValue
        value: -2.016
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Beija Me Beija
  type: MusicAlbum
  date published: 2024-02-19