Lefblom
type: MusicGroup
genre: acid house
popularity: 5
followers: 306
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1802aaf6538830706b4a777ac2660f75f00acf1f6c8e2a5cfd5d13a6a2094c4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953903
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953903
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13b4c938-9412-49b4-8507-36e979d3aec0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/13b4c938-9412-49b4-8507-36e979d3aec0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/13b4c938-9412-49b4-8507-36e979d3aec0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:05:05Z
additional property: OTSCanonicalRecord
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 0xf1802aaf6538830706b4a777ac2660f75f00acf1f6c8e2a5cfd5d13a6a2094c4. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13b4c938-9412-49b4-8507-36e979d3aec0.json and https://artists.proofprofile.net/proofs/artist/13b4c938-9412-49b4-8507-36e979d3aec0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
album: Dream Juice
  type: MusicAlbum
  date published: 2024-08-30
  track: Dream Juice
    type: MusicRecording
    duration: PT5M41S
    duration ms: 341221
    explicit: false
    by artist: Lefblom
    in album: Dream Juice
      type: MusicAlbum
      date published: 2024-08-30
    genre: acid house
    isrc code: UKN6K2401255
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T07:40:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdd6deb005ab3d28c02a3f233c1d8e6f8461bd4cd749f0683146c7ce6c35b5725
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958700
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958700
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKN6K2401255
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T08:09:50Z
    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 0xdd6deb005ab3d28c02a3f233c1d8e6f8461bd4cd749f0683146c7ce6c35b5725. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/UKN6K2401255.
      date published: 2026-07-19T08:09:50Z
    audio: Dream Juice
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.002
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.791
      additional property: Energy
        type: PropertyValue
        value: 0.957
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.853
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.95
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.938
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Doser
  type: MusicAlbum
  date published: 2024-09-13
album: Doser (E-Talking Remix)
  type: MusicAlbum
  date published: 2024-09-13
album: Feelings Too
  type: MusicAlbum
  date published: 2025-02-07
album: Hyperbells
  type: MusicAlbum
  date published: 2025-07-09
album: Mindcore
  type: MusicAlbum
  date published: 2025-10-31