Djenio Semedo
type: MusicGroup
genre: kizomba
genre: zouk
popularity: 9
followers: 1353
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x59a36090dee8599a64274f51b98f38e82ae5492a92e257fc4ea1b162819faa54
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe6a1ea1-9d9d-44fc-93f7-3f7a584c5ee8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe6a1ea1-9d9d-44fc-93f7-3f7a584c5ee8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe6a1ea1-9d9d-44fc-93f7-3f7a584c5ee8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x59a36090dee8599a64274f51b98f38e82ae5492a92e257fc4ea1b162819faa54","name":"Djenio Semedo","registered_at":"2026-06-21T18:35:01Z","symbol":"NIM2003412","token_address":"0x226a50037668ba109f0b6df6ba89548a8512ff65","type":"artist","uuid":"fe6a1ea1-9d9d-44fc-93f7-3f7a584c5ee8"}
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 0x59a36090dee8599a64274f51b98f38e82ae5492a92e257fc4ea1b162819faa54. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe6a1ea1-9d9d-44fc-93f7-3f7a584c5ee8.json and https://artists.proofprofile.net/proofs/artist/fe6a1ea1-9d9d-44fc-93f7-3f7a584c5ee8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x59a36090dee8599a64274f51b98f38e82ae5492a92e257fc4ea1b162819faa54","name":"Djenio Semedo","registered_at":"2026-06-21T18:35:01Z","symbol":"NIM2003412","token_address":"0x226a50037668ba109f0b6df6ba89548a8512ff65","type":"artist","uuid":"fe6a1ea1-9d9d-44fc-93f7-3f7a584c5ee8"}
album: Krétcheu
  type: MusicAlbum
  date published: 2020-06-24
album: Krétcheu
  type: MusicAlbum
  date published: 2021-10-20
album: Krétcheu
  type: MusicAlbum
  date published: 2021-10-20
  track: Amor
    type: MusicRecording
    duration: PT4M57S
    duration ms: 297792
    explicit: false
    by artist: Djenio Semedo
    in album: Krétcheu
      type: MusicAlbum
      date published: 2021-10-20
    genre: kizomba
    genre: zouk
    isrc code: ESA011550436
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T21:36:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x752805df15a3971e3767bf627e4346d0ef76545837ecda2bf1a48b018a582458
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958208
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958208
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA011550436
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T22:40:25Z
    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 0x752805df15a3971e3767bf627e4346d0ef76545837ecda2bf1a48b018a582458. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), 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/ESA011550436.
      date published: 2026-07-15T22:40:25Z
    audio: Amor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 98.34
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.78
      additional property: Energy
        type: PropertyValue
        value: 0.536
      additional property: Speechiness
        type: PropertyValue
        value: 0.067
      additional property: Acousticness
        type: PropertyValue
        value: 0.091
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.092
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.884
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.728
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor