Helicopter Showdown
type: MusicGroup
genre: deathstep
genre: drumstep
genre: dubstep
genre: riddim
popularity: 12
followers: 7715
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x38bce782108d34cd02777e36c1ec9b9ccb724d5aff716c977434c61d5a8114e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953636
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953636
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3715b8fe-e4e0-4b0e-aa32-1d09baf4a0b9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3715b8fe-e4e0-4b0e-aa32-1d09baf4a0b9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3715b8fe-e4e0-4b0e-aa32-1d09baf4a0b9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:03:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x38bce782108d34cd02777e36c1ec9b9ccb724d5aff716c977434c61d5a8114e7","name":"Helicopter Showdown","registered_at":"2026-06-14T10:14:10Z","symbol":"NIM0420974","token_address":"0x81117ae886b8f4c190336daf36aa8155c6bedc39","type":"artist","uuid":"3715b8fe-e4e0-4b0e-aa32-1d09baf4a0b9"}
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 0x38bce782108d34cd02777e36c1ec9b9ccb724d5aff716c977434c61d5a8114e7. Chain 2 (Bitcoin): anchored in block 953636 (2026-06-14T13:03:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3715b8fe-e4e0-4b0e-aa32-1d09baf4a0b9.json and https://artists.proofprofile.net/proofs/artist/3715b8fe-e4e0-4b0e-aa32-1d09baf4a0b9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T13:03:42Z
  text: {"copyright_id":"0x38bce782108d34cd02777e36c1ec9b9ccb724d5aff716c977434c61d5a8114e7","name":"Helicopter Showdown","registered_at":"2026-06-14T10:14:10Z","symbol":"NIM0420974","token_address":"0x81117ae886b8f4c190336daf36aa8155c6bedc39","type":"artist","uuid":"3715b8fe-e4e0-4b0e-aa32-1d09baf4a0b9"}
album: On the Shoulders of Giants
  type: MusicAlbum
  date published: 2012-12-03
album: On the Shoulders of Giants Remixed
  type: MusicAlbum
  date published: 2013-01-14
album: Hacker Crap / Cali Born
  type: MusicAlbum
  date published: 2013-06-17
album: The Trapstep EP
  type: MusicAlbum
  date published: 2013-07-04
album: The Oak In The Acorn
  type: MusicAlbum
  date published: 2014-02-28
album: The Squitty Bubbler Compilation EP
  type: MusicAlbum
  date published: 2014-06-06
album: These Vile Creatures
  type: MusicAlbum
  date published: 2014-06-06
album: The Dubstep.NET EP
  type: MusicAlbum
  date published: 2014-06-06
album: Prison Food / Drocone
  type: MusicAlbum
  date published: 2014-10-06
album: Chasing Lies
  type: MusicAlbum
  date published: 2014-12-01
album: Chasing Lies
  type: MusicAlbum
  date published: 2014-12-01
album: Chasing Lies
  type: MusicAlbum
  date published: 2014-12-01
album: There The Vultures Will Gather
  type: MusicAlbum
  date published: 2016-04-20
album: Run Up
  type: MusicAlbum
  date published: 2016-11-07
album: Future Proof
  type: MusicAlbum
  date published: 2017-01-26
album: Kanye Asada
  type: MusicAlbum
  date published: 2017-04-17
album: Kanye Asada
  type: MusicAlbum
  date published: 2017-04-17
album: What is Human?
  type: MusicAlbum
  date published: 2017-05-01
album: People Love Machines
  type: MusicAlbum
  date published: 2017-05-29
album: Bad Feels
  type: MusicAlbum
  date published: 2018-03-07
album: Shattered Egos and Fertile Soil
  type: MusicAlbum
  date published: 2018-04-15
album: The Nest
  type: MusicAlbum
  date published: 2018-11-02
album: Dragon Fist
  type: MusicAlbum
  date published: 2019-01-05
album: Cicada 3301
  type: MusicAlbum
  date published: 2019-01-26
album: Gucci Goonie$
  type: MusicAlbum
  date published: 2019-03-27
album: THE COBRONTOSAURUS
  type: MusicAlbum
  date published: 2019-05-03
album: Near Dark
  type: MusicAlbum
  date published: 2019-08-28
album: The Weasel
  type: MusicAlbum
  date published: 2019-09-19
track: HellWalker
  type: MusicRecording
  duration: PT4M16S
  duration ms: 256000
  explicit: false
  by artist: Mantis
  by artist: Helicopter Showdown
  in album: Fresh Blood Volume 3
    type: MusicAlbum
    date published: 2017-10-10
  isrc code: QM24S1703781
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-25T07:52:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x7c65f173e49b781f1df0e7162dedd4988a6fe8076df17651052a60c2829d5cae
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956304
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956304
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM24S1703781
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:55:08Z
  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 0x7c65f173e49b781f1df0e7162dedd4988a6fe8076df17651052a60c2829d5cae. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QM24S1703781.
    date published: 2026-07-02T03:55:08Z
  audio: HellWalker
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 100.979
    additional property: Musical Key
      type: PropertyValue
      value: 8
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.587
    additional property: Energy
      type: PropertyValue
      value: 0.819
    additional property: Speechiness
      type: PropertyValue
      value: 0.047
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.834
    additional property: Liveness
      type: PropertyValue
      value: 0.266
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.322
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Loudness (dB)
type: PropertyValue
value: -9.02

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major