Cruel Hearts Club
type: MusicGroup
popularity: 8
followers: 2499
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4bce48f4b454acdb1edc92c82431141967120e0e78d88d564d0bec1429e05d86
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f376792a-fbad-4e5d-a0d1-8f0f7ee5249f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f376792a-fbad-4e5d-a0d1-8f0f7ee5249f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f376792a-fbad-4e5d-a0d1-8f0f7ee5249f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4bce48f4b454acdb1edc92c82431141967120e0e78d88d564d0bec1429e05d86","name":"Cruel Hearts Club","registered_at":"2026-06-21T14:14:52Z","symbol":"NIM1944106","token_address":"0x235315dbb5d97219deba306659e2e574f1130473","type":"artist","uuid":"f376792a-fbad-4e5d-a0d1-8f0f7ee5249f"}
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 0x4bce48f4b454acdb1edc92c82431141967120e0e78d88d564d0bec1429e05d86. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f376792a-fbad-4e5d-a0d1-8f0f7ee5249f.json and https://artists.proofprofile.net/proofs/artist/f376792a-fbad-4e5d-a0d1-8f0f7ee5249f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0x4bce48f4b454acdb1edc92c82431141967120e0e78d88d564d0bec1429e05d86","name":"Cruel Hearts Club","registered_at":"2026-06-21T14:14:52Z","symbol":"NIM1944106","token_address":"0x235315dbb5d97219deba306659e2e574f1130473","type":"artist","uuid":"f376792a-fbad-4e5d-a0d1-8f0f7ee5249f"}
album: Hey Compadre
  type: MusicAlbum
  date published: 2019-11-20
album: Hey Compadre
  type: MusicAlbum
  date published: 2019-11-20
  track: Hey Compadre
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199347
    explicit: false
    by artist: Cruel Hearts Club
    in album: Hey Compadre
      type: MusicAlbum
      date published: 2019-11-20
    isrc code: GBKPL1977178
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T23:41:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x2c4a7c12152badaddd8ac2d6aa43d88590bf4d5a8d171816837abb42115faa07
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBKPL1977178
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 0x2c4a7c12152badaddd8ac2d6aa43d88590bf4d5a8d171816837abb42115faa07. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/GBKPL1977178.
      date published: 2026-07-05T01:12:41Z
    audio: Hey Compadre
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.056
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.508
      additional property: Energy
        type: PropertyValue
        value: 0.784
      additional property: Speechiness
        type: PropertyValue
        value: 0.057
      additional property: Acousticness
        type: PropertyValue
        value: 0.004
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.293
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.43
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.556
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Suck It Up
  type: MusicAlbum
  date published: 2020-02-28
album: Suck It Up
  type: MusicAlbum
  date published: 2020-02-28
album: Blame Me Too
  type: MusicAlbum
  date published: 2020-05-22
album: Blame Me Too
  type: MusicAlbum
  date published: 2020-05-22
album: Dirty Rotten Scum
  type: MusicAlbum
  date published: 2020-09-25
album: Dirty Rotten Scum
  type: MusicAlbum
  date published: 2020-09-25
album: Trash Love
  type: MusicAlbum
  date published: 2021-08-20
album: Trash Love
  type: MusicAlbum
  date published: 2021-08-20
album: Animal
  type: MusicAlbum
  date published: 2022-11-18
album: High Waist Jeans
  type: MusicAlbum
  date published: 2025-03-07
  track: High Waist Jeans
    type: MusicRecording
    duration: PT4M2S
    duration ms: 242090
    explicit: false
    by artist: Cruel Hearts Club
    in album: High Waist Jeans
      type: MusicAlbum
      date published: 2025-03-07
    isrc code: QM4TW2511508
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T11:40:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6c0871a725edec68c8fe9036a48d36450861e06d0ce207ccc3f4efaec69c5628
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958410
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958410
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW2511508
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T12:18:07Z
    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 0x6c0871a725edec68c8fe9036a48d36450861e06d0ce207ccc3f4efaec69c5628. Chain 2 (Bitcoin): anchored in block 958410 (2026-07-17T12:18:07Z), 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/QM4TW2511508.
      date published: 2026-07-17T12:18:07Z
    audio: High Waist Jeans
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 180.116
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Musical Key
type: PropertyValue
value: 5

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.37

Energy
type: PropertyValue
value: 0.809

Speechiness
type: PropertyValue
value: 0.078

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0.005

Liveness
type: PropertyValue
value: 0.32

Valence (Positivity)
type: PropertyValue
value: 0.59

Loudness (dB)
type: PropertyValue
value: -6.107

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor