Hellgrimm
type: MusicGroup
popularity: 4
followers: 191
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5d3ef39023780cff9905a2f66544b82d79478af594a2cc46b97cd490abf5081d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954043
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954043
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f791f13-e580-439e-a554-a41ebb9f513a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f791f13-e580-439e-a554-a41ebb9f513a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3f791f13-e580-439e-a554-a41ebb9f513a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:15:20Z
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 0x5d3ef39023780cff9905a2f66544b82d79478af594a2cc46b97cd490abf5081d. 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/3f791f13-e580-439e-a554-a41ebb9f513a.json and https://artists.proofprofile.net/proofs/artist/3f791f13-e580-439e-a554-a41ebb9f513a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Elysium
  type: MusicAlbum
  date published: 2020-02-18
album: Hellgrimm Live
  type: MusicAlbum
  date published: 2021-02-16
album: The Hunger
  type: MusicAlbum
  date published: 2021-06-01
album: Ritual
  type: MusicAlbum
  date published: 2022-08-30
album: Til Death Do Us Party
  type: MusicAlbum
  date published: 2023-03-26
album: Ritual 2
  type: MusicAlbum
  date published: 2024-02-21
album: Sacrifice
  type: MusicAlbum
  date published: 2024-03-12
album: Sacrifice -2
  type: MusicAlbum
  date published: 2024-03-15
album: Serpents Kiss
  type: MusicAlbum
  date published: 2024-12-09
album: Shooting Stars (A Tribute To Kurt Cobain)
  type: MusicAlbum
  date published: 2025-02-18
  track: Shooting Stars (A Tribute To Kurt Cobain)
    type: MusicRecording
    duration: PT3M39S
    duration ms: 219324
    explicit: false
    by artist: Hellgrimm
    in album: Shooting Stars (A Tribute To Kurt Cobain)
      type: MusicAlbum
      date published: 2025-02-18
    isrc code: USCGJ2537282
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T18:36:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x99fb3cd7e2325f7c763ebe97e9ad78f6d36d5149351694ab3fcb861121860664
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958924
    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/USCGJ2537282
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:38:12Z
    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 0x99fb3cd7e2325f7c763ebe97e9ad78f6d36d5149351694ab3fcb861121860664. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:38:12Z), 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/USCGJ2537282.
      date published: 2026-07-20T21:38:12Z
    audio: Shooting Stars (A Tribute To Kurt Cobain)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.136
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.453
      additional property: Energy
        type: PropertyValue
        value: 0.652
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.586
      additional property: Liveness
        type: PropertyValue
        value: 0.129
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.522
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.978
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major