Jimmy Leffy
type: MusicGroup
popularity: 12
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc683144ecd247949ce019ccbf7748e3111fdd7b9853d425a579ec868427fab41
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5a81ca8-d79b-491d-aab0-63332116b17c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5a81ca8-d79b-491d-aab0-63332116b17c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b5a81ca8-d79b-491d-aab0-63332116b17c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc683144ecd247949ce019ccbf7748e3111fdd7b9853d425a579ec868427fab41","name":"Jimmy Leffy","registered_at":"2026-06-14T23:33:17Z","symbol":"NIM0611592","token_address":"0x5095984a2f5cb2296d372f6b4b8f9676c85cf6c4","type":"artist","uuid":"b5a81ca8-d79b-491d-aab0-63332116b17c"}
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 0xc683144ecd247949ce019ccbf7748e3111fdd7b9853d425a579ec868427fab41. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5a81ca8-d79b-491d-aab0-63332116b17c.json and https://artists.proofprofile.net/proofs/artist/b5a81ca8-d79b-491d-aab0-63332116b17c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:04:42Z
  text: {"copyright_id":"0xc683144ecd247949ce019ccbf7748e3111fdd7b9853d425a579ec868427fab41","name":"Jimmy Leffy","registered_at":"2026-06-14T23:33:17Z","symbol":"NIM0611592","token_address":"0x5095984a2f5cb2296d372f6b4b8f9676c85cf6c4","type":"artist","uuid":"b5a81ca8-d79b-491d-aab0-63332116b17c"}
album: Jimmy Leffy (Old School Vol.1)
  type: MusicAlbum
  date published: 2025-08-30
album: Prendela Toki
  type: MusicAlbum
  date published: 2025-10-13
  track: Prendela Toki
    type: MusicRecording
    duration: PT2M22S
    duration ms: 142361
    explicit: false
    by artist: Jimmy Leffy
    in album: Prendela Toki
      type: MusicAlbum
      date published: 2025-10-13
    isrc code: QT3FH2559364
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T03:20:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x87108841236df8fd06e6ac5027170eda0640a63d043a61ba996cbff18b5683b8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956656
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956656
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QT3FH2559364
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T14:03:39Z
    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 0x87108841236df8fd06e6ac5027170eda0640a63d043a61ba996cbff18b5683b8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QT3FH2559364.
      date published: 2026-07-04T14:03:39Z
    audio: Prendela Toki
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 192.473
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.565
      additional property: Energy
        type: PropertyValue
        value: 0.516
      additional property: Speechiness
        type: PropertyValue
        value: 0.403
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.018
      additional property: Liveness
        type: PropertyValue
        value: 0.335
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.677
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.626
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major