The Quadroholics
type: MusicGroup
popularity: 11
followers: 870
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953807
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef50d89d-acd2-4c84-b70b-bd0ef5646ec4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ef50d89d-acd2-4c84-b70b-bd0ef5646ec4.json
additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
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  value: 2026-06-15T16:39:18Z
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  value: {"copyright_id":"0x895aa5f8efaa913f890b0178aa8454b873ab62e1c4df6abd99456e674e72b88c","name":"The Quadroholics","registered_at":"2026-06-15T05:34:09Z","symbol":"NIM0697791","token_address":"0x3527b62dd20fe3e0a486c9fd12bc0791f15979e1","type":"artist","uuid":"ef50d89d-acd2-4c84-b70b-bd0ef5646ec4"}
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x895aa5f8efaa913f890b0178aa8454b873ab62e1c4df6abd99456e674e72b88c. Chain 2 (Bitcoin): anchored in block 953808 (2026-06-15T16:45:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef50d89d-acd2-4c84-b70b-bd0ef5646ec4.json and https://artists.proofprofile.net/proofs/artist/ef50d89d-acd2-4c84-b70b-bd0ef5646ec4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T16:45:15Z
  text: {"copyright_id":"0x895aa5f8efaa913f890b0178aa8454b873ab62e1c4df6abd99456e674e72b88c","name":"The Quadroholics","registered_at":"2026-06-15T05:34:09Z","symbol":"NIM0697791","token_address":"0x3527b62dd20fe3e0a486c9fd12bc0791f15979e1","type":"artist","uuid":"ef50d89d-acd2-4c84-b70b-bd0ef5646ec4"}
album: Bring Your Friends
  type: MusicAlbum
  date published: 2018-12-30
album: Music to Burn Down Houses To
  type: MusicAlbum
  date published: 2019-01-11
album: Blast
  type: MusicAlbum
  date published: 2019-02-07
album: I Hate You
  type: MusicAlbum
  date published: 2019-06-19
album: Sega
  type: MusicAlbum
  date published: 2019-07-04
album: Insomnia
  type: MusicAlbum
  date published: 2019-07-19
album: Water
  type: MusicAlbum
  date published: 2019-07-26
album: Favorite Color
  type: MusicAlbum
  date published: 2019-08-02
album: Sober Minds Get Anxious
  type: MusicAlbum
  date published: 2019-09-13
album: Freaks & Ghouls
  type: MusicAlbum
  date published: 2019-10-30
album: We'll Be Right Back
  type: MusicAlbum
  date published: 2020-05-15
album: Save Yourself
  type: MusicAlbum
  date published: 2020-06-12
album: Medicate
  type: MusicAlbum
  date published: 2020-07-10
album: Fuck It (I Give Up)
  type: MusicAlbum
  date published: 2020-07-24
album: Aurora
  type: MusicAlbum
  date published: 2020-07-31
album: Corner of My Eye (Remix)
  type: MusicAlbum
  date published: 2021-01-08
album: Aurora: B-Sides
  type: MusicAlbum
  date published: 2021-06-11
album: Neon Moon
  type: MusicAlbum
  date published: 2021-08-20
album: Overdue
  type: MusicAlbum
  date published: 2022-03-18
album: Spent
  type: MusicAlbum
  date published: 2022-05-27
album: Blue July
  type: MusicAlbum
  date published: 2022-07-01
album: When the Music Stops
  type: MusicAlbum
  date published: 2022-08-05
album: Europa
  type: MusicAlbum
  date published: 2022-08-12
  track: Overdue
    type: MusicRecording
    duration: PT3M40S
    duration ms: 220263
    explicit: false
    by artist: The Quadroholics
    in album: Europa
      type: MusicAlbum
      date published: 2022-08-12
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    additional property: CopyrightID
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    additional property: OTSTimestamp
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    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 0x11e19ea8a7db175143583dbae6b53641428b4239433edd16d94bea36ce84e149. Chain 2 (Bitcoin): anchored in block 958834 (2026-07-20T05:55:47Z), 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/QZDA62225094.
      date published: 2026-07-20T05:55:47Z
    audio: Overdue
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.544
      additional property: Energy
        type: PropertyValue
        value: 0.94
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.833
      additional property: Liveness
        type: PropertyValue
        value: 0.189
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.159
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.56
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Lost in Space, Vol. 1
  type: MusicAlbum
  date published: 2023-04-21
album: Lost in Space, Vol. 2
  type: MusicAlbum
  date published: 2023-05-19
album: TECHNICAL DIFFICULTIES
  type: MusicAlbum
  date published: 2023-09-01
album: before the sun comes
album: ego death
album: american dream
album: blink and you'll miss it
album: *69
album: X

before the sun comes
type: MusicAlbum
date published: 2024-04-05

ego death
type: MusicAlbum
date published: 2024-05-17

american dream
type: MusicAlbum
date published: 2024-06-21

blink and you'll miss it
type: MusicAlbum
date published: 2024-07-26

*69
type: MusicAlbum
date published: 2025-08-08

X
type: MusicAlbum
date published: 2025-10-10