April Barrows
type: MusicGroup
genre: jazz
genre: vocal jazz
popularity: 20
followers: 1097
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc87473c78551808b7d87a6f67bb4ed61114109d954fa35ac8b6617d601610373
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/24159a0a-089c-4686-9f47-6eae5e341ed6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/24159a0a-089c-4686-9f47-6eae5e341ed6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/24159a0a-089c-4686-9f47-6eae5e341ed6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc87473c78551808b7d87a6f67bb4ed61114109d954fa35ac8b6617d601610373","name":"April Barrows","registered_at":"2026-06-14T08:14:49Z","symbol":"NIM0392529","token_address":"0x4c6a93e4eaf6d09a5987568a4396cd0f5ce414c1","type":"artist","uuid":"24159a0a-089c-4686-9f47-6eae5e341ed6"}
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 0xc87473c78551808b7d87a6f67bb4ed61114109d954fa35ac8b6617d601610373. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24159a0a-089c-4686-9f47-6eae5e341ed6.json and https://artists.proofprofile.net/proofs/artist/24159a0a-089c-4686-9f47-6eae5e341ed6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0xc87473c78551808b7d87a6f67bb4ed61114109d954fa35ac8b6617d601610373","name":"April Barrows","registered_at":"2026-06-14T08:14:49Z","symbol":"NIM0392529","token_address":"0x4c6a93e4eaf6d09a5987568a4396cd0f5ce414c1","type":"artist","uuid":"24159a0a-089c-4686-9f47-6eae5e341ed6"}
album: My Dream is You
  type: MusicAlbum
  date published: 1996-01-01
album: All You Need Is The Girl
  type: MusicAlbum
  date published: 2001-01-01
  track: Cupid Got Us Both
    type: MusicRecording
    duration: PT2M6S
    duration ms: 126360
    explicit: false
    by artist: April Barrows
    in album: All You Need Is The Girl
      type: MusicAlbum
      date published: 2001-01-01
    genre: jazz
    genre: vocal jazz
    isrc code: USHM21126201
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T03:06:10+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4ba919e74bf05fa87cbc99661ec391673e5ca3a6d72cc95aa9d06c64d39a539a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958484
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958484
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21126201
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T03:34:53Z
    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 0x4ba919e74bf05fa87cbc99661ec391673e5ca3a6d72cc95aa9d06c64d39a539a. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/USHM21126201.
      date published: 2026-07-18T03:34:53Z
    audio: Cupid Got Us Both
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 135.945
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.712
      additional property: Energy
        type: PropertyValue
        value: 0.366
      additional property: Speechiness
        type: PropertyValue
        value: 0.065
      additional property: Acousticness
        type: PropertyValue
        value: 0.799
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.139
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.566
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.832
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major