Black Grapefruit
type: MusicGroup
genre: alternative r&b
popularity: 14
followers: 4889
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4842b6ff26d0c40ae561ce13bbc47bb34b5f7762f1f6f27b51d4ac88b83ea563
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953697
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953697
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e24b85e-3d3e-4506-96e5-2d0015c68310.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e24b85e-3d3e-4506-96e5-2d0015c68310.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5e24b85e-3d3e-4506-96e5-2d0015c68310
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:49:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4842b6ff26d0c40ae561ce13bbc47bb34b5f7762f1f6f27b51d4ac88b83ea563","name":"Black Grapefruit","registered_at":"2026-06-14T14:18:43Z","symbol":"NIM0479335","token_address":"0x00f09d3c1c0dcea273c7af6f980467260a18f8d7","type":"artist","uuid":"5e24b85e-3d3e-4506-96e5-2d0015c68310"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4842b6ff26d0c40ae561ce13bbc47bb34b5f7762f1f6f27b51d4ac88b83ea563. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e24b85e-3d3e-4506-96e5-2d0015c68310.json and https://artists.proofprofile.net/proofs/artist/5e24b85e-3d3e-4506-96e5-2d0015c68310.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T21:49:28Z
  text: {"copyright_id":"0x4842b6ff26d0c40ae561ce13bbc47bb34b5f7762f1f6f27b51d4ac88b83ea563","name":"Black Grapefruit","registered_at":"2026-06-14T14:18:43Z","symbol":"NIM0479335","token_address":"0x00f09d3c1c0dcea273c7af6f980467260a18f8d7","type":"artist","uuid":"5e24b85e-3d3e-4506-96e5-2d0015c68310"}
album: Youth in Decline
  type: MusicAlbum
  date published: 2014-07-01
album: SOS
  type: MusicAlbum
  date published: 2014-09-16
album: SOS
  type: MusicAlbum
  date published: 2014-09-16
  track: She Wants
    type: MusicRecording
    duration: PT4M57S
    duration ms: 297489
    explicit: false
    by artist: Black Grapefruit
    in album: SOS
      type: MusicAlbum
      date published: 2014-09-16
    genre: alternative r&b
    isrc code: US9W21400005
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T02:09:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5ac462147610f7459fb71352bc8c398a3c132428ccaaf495a16a42bd96f103da
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958224
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958224
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9W21400005
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T02:28:43Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac462147610f7459fb71352bc8c398a3c132428ccaaf495a16a42bd96f103da. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US9W21400005 — a six-check JSON result.
      date published: 2026-07-16T02:28:43Z
    audio: She Wants
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 108.16
      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: 0.641
      additional property: Energy
        type: PropertyValue
        value: 0.65
      additional property: Speechiness
        type: PropertyValue
        value: 0.1
      additional property: Acousticness
        type: PropertyValue
        value: 0.006
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.798
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.41
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.034
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: SOS
  type: MusicAlbum
  date published: 2014-09-16
album: Mind
  type: MusicAlbum
  date published: 2018-06-05
album: Mind
  type: MusicAlbum
  date published: 2018-06-05
album: Omygod
  type: MusicAlbum
  date published: 2018-06-25
album: Omygod
  type: MusicAlbum
  date published: 2018-06-25
album: End
  type: MusicAlbum
  date published: 2018-07-24
album: End
  type: MusicAlbum
  date published: 2018-07-24
album: All My Relations
  type: MusicAlbum
  date published: 2018-08-10
album: All My Relations
  type: MusicAlbum
  date published: 2018-08-10
album: All My Relations
  type: MusicAlbum
  date published: 2018-08-10
  track: End
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206050
    explicit: false
    by artist: Black Grapefruit
    in album: All My Relations
      type: MusicAlbum
      date published: 2018-08-10
    genre: alternative r&b
    isrc code: QZCPE1800006
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T22:39:07+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x617a2f50d352fe123c4352f65889c11d9e2bdd9118898e2522811e0c7ba02e5c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958340
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958340
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZCPE1800006
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T00:53:26Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x617a2f50d352fe123c4352f65889c11d9e2bdd9118898e2522811e0c7ba02e5c. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZCPE1800006 — a six-check JSON result.
      date published: 2026-07-17T00:53:26Z
    audio: End
album: Sun
album: Crypt Keeper
album: 0122
album: Fade Forget
album: Waist
album: Waist (Black Grapefruit Remix)
album: Stuck
album: Inside
album: Vulnerability
album: Water Sign

End
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 102.021
additional property: Musical Key
  type: PropertyValue
  value: 7
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.706
additional property: Energy
  type: PropertyValue
  value: 0.464
additional property: Speechiness
  type: PropertyValue
  value: 0.075
additional property: Acousticness
  type: PropertyValue
  value: 0.035
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.418
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.169
additional property: Loudness (dB)
  type: PropertyValue
  value: -10.902
additional property: Key Name
  type: PropertyValue
  value: G
additional property: Mode Name
  type: PropertyValue
  value: Major

Sun
type: MusicAlbum
date published: 2018-11-06

Sun
type: MusicAlbum
date published: 2018-11-06

Sun
type: MusicAlbum
date published: 2018-11-16

Crypt Keeper
type: MusicAlbum
date published: 2019-05-23

0122
type: MusicAlbum
date published: 2019-06-14

Fade Forget
type: MusicAlbum
date published: 2019-06-28

Fade Forget
type: MusicAlbum
date published: 2019-06-28

Fade Forget
type: MusicAlbum
date published: 2019-06-28

Waist
type: MusicAlbum
date published: 2019-11-13

Waist
type: MusicAlbum
date published: 2019-11-13

Waist (Black Grapefruit Remix)
type: MusicAlbum
date published: 2020-06-10

Stuck
type: MusicAlbum
date published: 2020-07-15

Inside
type: MusicAlbum
date published: 2020-08-27

Vulnerability
type: MusicAlbum
date published: 2020-10-28

Water Sign
type: MusicAlbum
date published: 2022-06-28