Lucifer's Hammer
type: MusicGroup
genre: heavy metal
genre: speed metal
description: Lucifer's Hammer is a science fiction post-apocalypse-survival novel by American writers Larry Niven and Jerry Pournelle that was first published in 1977. It was nominated for the Hugo Award for Best
popularity: 10
followers: 4177
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x33f5eb1d4824e556e352453df59c1cf0fdec4a9f41f509872b06774303d030f5
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a59d4fd4-b3d3-472a-837f-c8f1c87109de.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a59d4fd4-b3d3-472a-837f-c8f1c87109de.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a59d4fd4-b3d3-472a-837f-c8f1c87109de
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x33f5eb1d4824e556e352453df59c1cf0fdec4a9f41f509872b06774303d030f5","name":"Lucifer's Hammer","registered_at":"2026-06-20T07:23:30Z","symbol":"NIM1553410","token_address":"0xb04eb31bfe576b74cadbf9283824019ccb94d833","type":"artist","uuid":"a59d4fd4-b3d3-472a-837f-c8f1c87109de"}
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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33f5eb1d4824e556e352453df59c1cf0fdec4a9f41f509872b06774303d030f5. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a59d4fd4-b3d3-472a-837f-c8f1c87109de.json and https://artists.proofprofile.net/proofs/artist/a59d4fd4-b3d3-472a-837f-c8f1c87109de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x33f5eb1d4824e556e352453df59c1cf0fdec4a9f41f509872b06774303d030f5","name":"Lucifer's Hammer","registered_at":"2026-06-20T07:23:30Z","symbol":"NIM1553410","token_address":"0xb04eb31bfe576b74cadbf9283824019ccb94d833","type":"artist","uuid":"a59d4fd4-b3d3-472a-837f-c8f1c87109de"}
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  date published: 2014-02-07
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album: Time Is Death
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  date published: 2018-03-31
  track: Prisioners of the Night
    type: MusicRecording
    duration: PT3M37S
    duration ms: 217813
    explicit: false
    by artist: Lucifer's Hammer
    in album: Time Is Death
      type: MusicAlbum
      date published: 2018-03-31
    genre: heavy metal
    genre: speed metal
    isrc code: USDY41823449
    additional property: CopyrightID
    additional property: CopyrightStatus
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958924
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDY41823449
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T18:54:07Z
    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 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 0x110b176f9c0724717fce32010b71b1bc51252a41074634e5c651f2d820362d03. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), 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/USDY41823449.
      date published: 2026-07-20T18:54:07Z
    audio: Prisioners of the Night
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
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      additional property: Musical Key
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      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.325
      additional property: Energy
        type: PropertyValue
        value: 0.908
      additional property: Speechiness
        type: PropertyValue
        value: 0.084
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.815
      additional property: Liveness
        type: PropertyValue
        value: 0.102
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.381
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.44
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
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