Zezo Do Maranhão
type: MusicGroup
genre: brega
genre: forró
genre: seresta
popularity: 3
followers: 192
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7949d12934726beb52a3fc745497a830b4ea927aefd70bdea33ba5321faf3317
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/736d333a-50a6-4a13-bb68-43f27ef2d4f0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/736d333a-50a6-4a13-bb68-43f27ef2d4f0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/736d333a-50a6-4a13-bb68-43f27ef2d4f0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7949d12934726beb52a3fc745497a830b4ea927aefd70bdea33ba5321faf3317","name":"Zezo Do Maranhão","registered_at":"2026-06-17T05:48:52Z","symbol":"NIM1300313","token_address":"0xec36ac5cd6a59db2014af04224ba45ef8b976c05","type":"artist","uuid":"736d333a-50a6-4a13-bb68-43f27ef2d4f0"}
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 0x7949d12934726beb52a3fc745497a830b4ea927aefd70bdea33ba5321faf3317. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/736d333a-50a6-4a13-bb68-43f27ef2d4f0.json and https://artists.proofprofile.net/proofs/artist/736d333a-50a6-4a13-bb68-43f27ef2d4f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x7949d12934726beb52a3fc745497a830b4ea927aefd70bdea33ba5321faf3317","name":"Zezo Do Maranhão","registered_at":"2026-06-17T05:48:52Z","symbol":"NIM1300313","token_address":"0xec36ac5cd6a59db2014af04224ba45ef8b976c05","type":"artist","uuid":"736d333a-50a6-4a13-bb68-43f27ef2d4f0"}
album: Zezo Do Maranhão
  type: MusicAlbum
  date published: 2021-08-25
album: Ep 01
  type: MusicAlbum
  date published: 2021-09-09
  track: Nem Uma Carta
    type: MusicRecording
    duration: PT4M13S
    duration ms: 253387
    explicit: false
    by artist: Zezo Do Maranhão
    in album: Ep 01
      type: MusicAlbum
      date published: 2021-09-09
    genre: brega
    genre: forró
    genre: seresta
    isrc code: QM3DF2143593
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T20:32:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4bc7ad837d0d08133d3c9ea586d1c28a428125e968fef22aa0b2663d40ae0aa8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM3DF2143593
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x4bc7ad837d0d08133d3c9ea586d1c28a428125e968fef22aa0b2663d40ae0aa8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QM3DF2143593.
      date published: 2026-07-05T01:12:41Z
    audio: Nem Uma Carta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 92.98
      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: 0.65
      additional property: Energy
        type: PropertyValue
        value: 0.818
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.707
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.17
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.636
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.011
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ep Maio 2022
  type: MusicAlbum
  date published: 2022-05-25