Black Curse
type: MusicGroup
genre: black metal
genre: death metal
popularity: 27
followers: 18892
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4ffe184b2803680908d44a3d92dce8959413b3a08801081895ed02a4efea22e5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fa71a9c-a118-4d6b-991b-dbd75ecf125d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6fa71a9c-a118-4d6b-991b-dbd75ecf125d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6fa71a9c-a118-4d6b-991b-dbd75ecf125d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4ffe184b2803680908d44a3d92dce8959413b3a08801081895ed02a4efea22e5","name":"Black Curse","registered_at":"2026-06-12T00:34:48Z","symbol":"NIM0143786","token_address":"0x4100bc24c42f87c571dc7a1bdf382c5065d04267","type":"artist","uuid":"6fa71a9c-a118-4d6b-991b-dbd75ecf125d"}
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 0x4ffe184b2803680908d44a3d92dce8959413b3a08801081895ed02a4efea22e5. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fa71a9c-a118-4d6b-991b-dbd75ecf125d.json and https://artists.proofprofile.net/proofs/artist/6fa71a9c-a118-4d6b-991b-dbd75ecf125d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x4ffe184b2803680908d44a3d92dce8959413b3a08801081895ed02a4efea22e5","name":"Black Curse","registered_at":"2026-06-12T00:34:48Z","symbol":"NIM0143786","token_address":"0x4100bc24c42f87c571dc7a1bdf382c5065d04267","type":"artist","uuid":"6fa71a9c-a118-4d6b-991b-dbd75ecf125d"}
album: Endless Wound
  type: MusicAlbum
  date published: 2020-04-24
album: Trodden Flesh
  type: MusicAlbum
  date published: 2024-09-12
  track: Trodden Flesh
    type: MusicRecording
    duration: PT11M46S
    duration ms: 706901
    explicit: false
    by artist: Black Curse
    in album: Trodden Flesh
      type: MusicAlbum
      date published: 2024-09-12
    genre: black metal
    genre: death metal
    isrc code: DE1K72300017
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T05:19:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x79ef45538bd06c53b02b20cc85a7948b3e87a33f05c299b18c9fa4a76d35fac2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958673
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958673
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1K72300017
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T05:38:28Z
    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 0x79ef45538bd06c53b02b20cc85a7948b3e87a33f05c299b18c9fa4a76d35fac2. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/DE1K72300017.
      date published: 2026-07-19T05:38:28Z
    audio: Trodden Flesh
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 167.592
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.083
      additional property: Energy
        type: PropertyValue
        value: 0.913
      additional property: Speechiness
        type: PropertyValue
        value: 0.09
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.925
      additional property: Liveness
        type: PropertyValue
        value: 0.199
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.045
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.521
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Burning in Celestial Poison
  type: MusicAlbum
  date published: 2024-10-25
  track: Flowers of Gethsemane
    type: MusicRecording
    duration: PT11M9S
    duration ms: 669402
    explicit: false
    by artist: Black Curse
    in album: Burning in Celestial Poison
      type: MusicAlbum
      date published: 2024-10-25
    genre: black metal
    genre: death metal
    isrc code: DE1K72300020
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-28T20:41:08+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1d46285df3fa7dcd6c6427f53d686954b00bd386aa4546d42bfdc5509c814676
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DE1K72300020
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0x1d46285df3fa7dcd6c6427f53d686954b00bd386aa4546d42bfdc5509c814676. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/DE1K72300020.
      date published: 2026-07-02T16:51:38Z
    audio: Flowers of Gethsemane
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 82.537
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.113
      additional property: Energy
        type: PropertyValue
        value: 0.838
      additional property: Speechiness
        type: PropertyValue
        value: 0.099
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Instrumentalness
type: PropertyValue
value: 0.926

Liveness
type: PropertyValue
value: 0.072

Valence (Positivity)
type: PropertyValue
value: 0.066

Loudness (dB)
type: PropertyValue
value: -6.833

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Minor