Gravethorn
type: MusicGroup
genre: black metal
genre: melodic death metal
popularity: 3
followers: 308
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a3f8d5f5a513c05496de108178759372a5eaea57e58fdb40490643b4c666856
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953899
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953899
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11cc9c14-0cfc-4883-a973-16de198ebd06.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/11cc9c14-0cfc-4883-a973-16de198ebd06.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/11cc9c14-0cfc-4883-a973-16de198ebd06
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T06:37:25Z
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 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 0x1a3f8d5f5a513c05496de108178759372a5eaea57e58fdb40490643b4c666856. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/11cc9c14-0cfc-4883-a973-16de198ebd06.json and https://artists.proofprofile.net/proofs/artist/11cc9c14-0cfc-4883-a973-16de198ebd06.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T06:37:25Z
album: March of the Savages
  type: MusicAlbum
  date published: 2023-04-19
album: Monolith Rising
  type: MusicAlbum
  date published: 2023-05-16
album: Thornwrapped Chaos
  type: MusicAlbum
  date published: 2023-05-24
album: With An Axe To Grind
  type: MusicAlbum
  date published: 2023-06-13
album: Underground Rituals of Those Unseen
  type: MusicAlbum
  date published: 2023-06-13
album: Creeping Death
  type: MusicAlbum
  date published: 2023-09-06
album: Atrocitas
  type: MusicAlbum
  date published: 2024-12-21
album: Atrocitas
  type: MusicAlbum
  date published: 2024-12-21
  track: Atrocitas
    type: MusicRecording
    duration: PT4M7S
    duration ms: 247339
    explicit: false
    by artist: Gravethorn
    in album: Atrocitas
      type: MusicAlbum
      date published: 2024-12-21
    genre: black metal
    genre: melodic death metal
    isrc code: QMBZ92462203
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T06:31:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf533ed2e35b4e6a88d2f075218abdbabe9d206fdf088ec243418719e648ea1b5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958838
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958838
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMBZ92462203
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T07:01:21Z
    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 0xf533ed2e35b4e6a88d2f075218abdbabe9d206fdf088ec243418719e648ea1b5. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/QMBZ92462203.
      date published: 2026-07-20T07:01:21Z
    audio: Atrocitas
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 132.476
      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: 0.309
      additional property: Energy
        type: PropertyValue
        value: 0.968
      additional property: Speechiness
        type: PropertyValue
        value: 0.114
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.798
      additional property: Liveness
        type: PropertyValue
        value: 0.062
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.034
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.662
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major