Art Alfie Karaoke
type: MusicGroup
popularity: 2
followers: 40
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x97f198801c5315a61a7b81b7f4c7ad5cfa1c49fbbd636e99ad7fddf734765543
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5593cd8-7221-420e-91a9-be48b25572f1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b5593cd8-7221-420e-91a9-be48b25572f1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b5593cd8-7221-420e-91a9-be48b25572f1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x97f198801c5315a61a7b81b7f4c7ad5cfa1c49fbbd636e99ad7fddf734765543","name":"Art Alfie Karaoke","registered_at":"2026-06-20T14:47:38Z","symbol":"NIM1633324","token_address":"0xf3ca71757bbaab6edf81a938e365e99a928afeee","type":"artist","uuid":"b5593cd8-7221-420e-91a9-be48b25572f1"}
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 0x97f198801c5315a61a7b81b7f4c7ad5cfa1c49fbbd636e99ad7fddf734765543. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b5593cd8-7221-420e-91a9-be48b25572f1.json and https://artists.proofprofile.net/proofs/artist/b5593cd8-7221-420e-91a9-be48b25572f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x97f198801c5315a61a7b81b7f4c7ad5cfa1c49fbbd636e99ad7fddf734765543","name":"Art Alfie Karaoke","registered_at":"2026-06-20T14:47:38Z","symbol":"NIM1633324","token_address":"0xf3ca71757bbaab6edf81a938e365e99a928afeee","type":"artist","uuid":"b5593cd8-7221-420e-91a9-be48b25572f1"}
album: Diset
  type: MusicAlbum
  date published: 2025-02-14
  track: Why Love
    type: MusicRecording
    duration: PT2M55S
    duration ms: 175866
    explicit: true
    by artist: Art Alfie Karaoke
    in album: Diset
      type: MusicAlbum
      date published: 2025-02-14
    isrc code: SE5JH2401901
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T08:17:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc48ca77b2e056f4049efc563e0042b0dcecc645af50032d6236deb2e8f2f741e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958991
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958991
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SE5JH2401901
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T11:17:43Z
    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 0xc48ca77b2e056f4049efc563e0042b0dcecc645af50032d6236deb2e8f2f741e. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:17:43Z), 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/SE5JH2401901.
      date published: 2026-07-21T11:17:43Z
    audio: Why Love
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 123.975
      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: 0.573
      additional property: Energy
        type: PropertyValue
        value: 0.709
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.865
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.691
      additional property: Liveness
        type: PropertyValue
        value: 0.696
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.362
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.478
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Fem minuter (single version)
  type: MusicAlbum
  date published: 2025-05-23