Armstrong Gun
type: MusicGroup
genre: heavy metal
description: thumb|Armstrong gun deployed by Japan during the Boshin War (1868–69). An Armstrong gun was a type of rifled breech-loading field and heavy artillery piece designed by Sir William Armstrong. It was f
popularity: 2
followers: 116
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additional property: OTSVerifyInstructions
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  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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  date published: 2026-06-21T07:29:20Z
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album: Smart Kills
  type: MusicAlbum
  date published: 2022-06-03
album: Armstrong Gun
  type: MusicAlbum
  date published: 2022-07-03
album: Armstrong Gun
  type: MusicAlbum
  date published: 2022-07-03
album: Struck With Steel
  type: MusicAlbum
  date published: 2023-01-31
album: Struck With Steel
  type: MusicAlbum
  date published: 2023-01-31
album: In the Teeth of the Gale
  type: MusicAlbum
  date published: 2025-02-17
album: The Fearsome Age
  type: MusicAlbum
  date published: 2025-03-31
  track: Thrall to Woe
    type: MusicRecording
    duration: PT4M38S
    duration ms: 278191
    explicit: false
    by artist: Armstrong Gun
    in album: The Fearsome Age
      type: MusicAlbum
      date published: 2025-03-31
    genre: heavy metal
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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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2e4f7dbaa0d8f7b08b838e216680f99839a45301185cef2482f0780f468c45. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/GBMJG2509489.
      date published: 2026-07-15T17:14:36Z
    audio: Thrall to Woe
      type: AudioObject
      additional property: Tempo (BPM)
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      additional property: Danceability
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      additional property: Energy
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      additional property: Speechiness
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      additional property: Acousticness
        type: PropertyValue
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      additional property: Instrumentalness
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      additional property: Liveness
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      additional property: Valence (Positivity)
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        value: 0.296
      additional property: Loudness (dB)
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        value: -9.593
      additional property: Key Name
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        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major