Defoliant
type: MusicGroup
description: thumb|281x281px|Defoliants are used as an aid in the harvesting of certain crops such as cotton. thumb|2,4-D, one of the first chemical herbicides used as a defoliant.|281x281px thumb|U.S. Army Huey h
popularity: 7
followers: 1023
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7c5ad3f1b1d911d59bf21e92c037f314ec48773cd3a32f183fc7bf95267899c0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954647
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954647
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d73d27c5-0ebd-4622-a0b3-6e771994b88e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d73d27c5-0ebd-4622-a0b3-6e771994b88e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d73d27c5-0ebd-4622-a0b3-6e771994b88e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:36:58Z
additional property: OTSCanonicalRecord
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 0x7c5ad3f1b1d911d59bf21e92c037f314ec48773cd3a32f183fc7bf95267899c0. Chain 2 (Bitcoin): anchored in block 954647 (2026-06-21T04:36:58Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d73d27c5-0ebd-4622-a0b3-6e771994b88e.json and https://artists.proofprofile.net/proofs/artist/d73d27c5-0ebd-4622-a0b3-6e771994b88e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:36:58Z
album: Новогодний комикс «Синий Огонек»
  type: MusicAlbum
  date published: 2007-12-26
album: Пих-Пох Атакует! Upgrade
  type: MusicAlbum
  date published: 2008-02-21
album: Московские куранты
  type: MusicAlbum
  date published: 2008-11-01
album: Московские куранты
  type: MusicAlbum
  date published: 2008-11-01
album: Бестселлер
  type: MusicAlbum
  date published: 2009-05-27
album: Бестселлер
  type: MusicAlbum
  date published: 2009-05-27
  track: Ван лов
    type: MusicRecording
    duration: PT3M58S
    duration ms: 238008
    explicit: true
    by artist: Defoliant
    in album: Бестселлер
      type: MusicAlbum
      date published: 2009-05-27
    isrc code: QM4TX1585188
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-13T18:16:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf90e273e19248169cb1e911d50c2af9202f0b672127b7b95a4c66feeb10c8f28
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957899
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957899
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TX1585188
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-13T19:36:39Z
    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 0xf90e273e19248169cb1e911d50c2af9202f0b672127b7b95a4c66feeb10c8f28. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/QM4TX1585188.
      date published: 2026-07-13T19:36:39Z
    audio: Ван лов
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 72
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.663
      additional property: Energy
        type: PropertyValue
        value: 0.763
      additional property: Speechiness
        type: PropertyValue
        value: 0.049
      additional property: Acousticness
        type: PropertyValue
        value: 0.153
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.347
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.684
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.716
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Перемотка
  type: MusicAlbum
  date published: 2010-04-12
album: Перемотка (Ремиксы)
  type: MusicAlbum
  date published: 2010-08-13
album: Перемотка 2
  type: MusicAlbum
  date published: 2010-12-17