Leandro Renzi
type: MusicGroup
popularity: 4
followers: 125
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2ffb0c46a0bdc9a17ceab4d807e6e4751887dbe7881f6d2dfde694d8fc8bdaa7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953924
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953924
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d44b1f7-af40-44ef-9b15-4856b44d41f6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d44b1f7-af40-44ef-9b15-4856b44d41f6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d44b1f7-af40-44ef-9b15-4856b44d41f6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:52:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2ffb0c46a0bdc9a17ceab4d807e6e4751887dbe7881f6d2dfde694d8fc8bdaa7","name":"Leandro Renzi","registered_at":"2026-06-15T23:37:51Z","symbol":"NIM0868085","token_address":"0x3aa2f66856c22f348cfbe6f4f1f2f03386ceb083","type":"artist","uuid":"1d44b1f7-af40-44ef-9b15-4856b44d41f6"}
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 0x2ffb0c46a0bdc9a17ceab4d807e6e4751887dbe7881f6d2dfde694d8fc8bdaa7. Chain 2 (Bitcoin): anchored in block 953924 (2026-06-16T09:52:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d44b1f7-af40-44ef-9b15-4856b44d41f6.json and https://artists.proofprofile.net/proofs/artist/1d44b1f7-af40-44ef-9b15-4856b44d41f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T09:52:28Z
  text: {"copyright_id":"0x2ffb0c46a0bdc9a17ceab4d807e6e4751887dbe7881f6d2dfde694d8fc8bdaa7","name":"Leandro Renzi","registered_at":"2026-06-15T23:37:51Z","symbol":"NIM0868085","token_address":"0x3aa2f66856c22f348cfbe6f4f1f2f03386ceb083","type":"artist","uuid":"1d44b1f7-af40-44ef-9b15-4856b44d41f6"}
album: Dance Monkey
  type: MusicAlbum
  date published: 2019-05-10
  track: Dance Monkey
    type: MusicRecording
    duration: PT2M58S
    duration ms: 178810
    explicit: false
    by artist: Leandro Renzi
    in album: Dance Monkey
      type: MusicAlbum
      date published: 2019-05-10
    isrc code: QZHNC1938331
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T20:15:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2ca8d5975396d59f4f181a611c2328fb294ce701f44f6887950392a775fbebb8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958324
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958324
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHNC1938331
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T23:22:10Z
    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 0x2ca8d5975396d59f4f181a611c2328fb294ce701f44f6887950392a775fbebb8. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:22:10Z), 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/QZHNC1938331.
      date published: 2026-07-16T23:22:10Z
    audio: Dance Monkey
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 115.128
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.669
      additional property: Energy
        type: PropertyValue
        value: 0.676
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.042
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.821
      additional property: Liveness
        type: PropertyValue
        value: 0.103
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.393
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.574
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor