Nightpröwler
type: MusicGroup
genre: black metal
genre: speed metal
genre: thrash metal
popularity: 8
followers: 2017
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x755fead4e91becaa12f70b51e5acd415dcfdd9d38f938c2311cdf26c5c9bb6bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67c39cd7-bd74-4fdd-a10c-a7f639dab3cd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/67c39cd7-bd74-4fdd-a10c-a7f639dab3cd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/67c39cd7-bd74-4fdd-a10c-a7f639dab3cd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x755fead4e91becaa12f70b51e5acd415dcfdd9d38f938c2311cdf26c5c9bb6bf","name":"Nightpröwler","registered_at":"2026-06-17T01:47:05Z","symbol":"NIM1242604","token_address":"0xe835be48a286e80fad0966ec22f2a3a3acdca060","type":"artist","uuid":"67c39cd7-bd74-4fdd-a10c-a7f639dab3cd"}
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 0x755fead4e91becaa12f70b51e5acd415dcfdd9d38f938c2311cdf26c5c9bb6bf. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/67c39cd7-bd74-4fdd-a10c-a7f639dab3cd.json and https://artists.proofprofile.net/proofs/artist/67c39cd7-bd74-4fdd-a10c-a7f639dab3cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x755fead4e91becaa12f70b51e5acd415dcfdd9d38f938c2311cdf26c5c9bb6bf","name":"Nightpröwler","registered_at":"2026-06-17T01:47:05Z","symbol":"NIM1242604","token_address":"0xe835be48a286e80fad0966ec22f2a3a3acdca060","type":"artist","uuid":"67c39cd7-bd74-4fdd-a10c-a7f639dab3cd"}
album: 666 Booze Nights Till Apocalypse
  type: MusicAlbum
  date published: 2014-08-12
album: Drunk Whores and Destruction
  type: MusicAlbum
  date published: 2015-06-07
album: Unholy Rawness
  type: MusicAlbum
  date published: 2017-05-16
album: The Man Who Holds The Ace
  type: MusicAlbum
  date published: 2021-04-10
album: Rock N' Roll Uproaring Blasphemy
  type: MusicAlbum
  date published: 2021-07-25
  track: Speed Rock N' Roll Warriors
    type: MusicRecording
    duration: PT4M1S
    duration ms: 241500
    explicit: false
    by artist: Nightpröwler
    in album: Rock N' Roll Uproaring Blasphemy
      type: MusicAlbum
      date published: 2021-07-25
    genre: black metal
    genre: speed metal
    genre: thrash metal
    isrc code: QZ8252124219
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T21:54:51+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xca419578c141b69bea0d47a4703f86220018b6d76715c8672e1f912619ad0f5b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958935
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958935
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZ8252124219
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T22:08:19Z
    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 0xca419578c141b69bea0d47a4703f86220018b6d76715c8672e1f912619ad0f5b. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/QZ8252124219.
      date published: 2026-07-20T22:08:19Z
    audio: Speed Rock N' Roll Warriors
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.921
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.366
      additional property: Energy
        type: PropertyValue
        value: 0.988
      additional property: Speechiness
        type: PropertyValue
        value: 0.117
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.004
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.63
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.757
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Die! (By My Evil Curse)
  type: MusicAlbum
  date published: 2021-08-01