Dark Hearted
type: MusicGroup
genre: deathcore
popularity: 5
followers: 583
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfd4bd7a99776c20dfbe9240c1e2680789e2bf03c11000d13dfabfdd6ae7ab56a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  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/a7563213-b6e4-482e-a1ba-fa0dd5bc7c6e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7563213-b6e4-482e-a1ba-fa0dd5bc7c6e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7563213-b6e4-482e-a1ba-fa0dd5bc7c6e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfd4bd7a99776c20dfbe9240c1e2680789e2bf03c11000d13dfabfdd6ae7ab56a","name":"Dark Hearted","registered_at":"2026-06-20T08:10:13Z","symbol":"NIM1562404","token_address":"0x07897aafb2c3884bc30330ed7997467337f095fb","type":"artist","uuid":"a7563213-b6e4-482e-a1ba-fa0dd5bc7c6e"}
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 0xfd4bd7a99776c20dfbe9240c1e2680789e2bf03c11000d13dfabfdd6ae7ab56a. 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/a7563213-b6e4-482e-a1ba-fa0dd5bc7c6e.json and https://artists.proofprofile.net/proofs/artist/a7563213-b6e4-482e-a1ba-fa0dd5bc7c6e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xfd4bd7a99776c20dfbe9240c1e2680789e2bf03c11000d13dfabfdd6ae7ab56a","name":"Dark Hearted","registered_at":"2026-06-20T08:10:13Z","symbol":"NIM1562404","token_address":"0x07897aafb2c3884bc30330ed7997467337f095fb","type":"artist","uuid":"a7563213-b6e4-482e-a1ba-fa0dd5bc7c6e"}
album: Self
  type: MusicAlbum
  date published: 2022-10-31
album: 13
  type: MusicAlbum
  date published: 2023-12-13
  track: 13
    type: MusicRecording
    duration: PT3M44S
    duration ms: 224411
    explicit: true
    by artist: Dark Hearted
    in album: 13
      type: MusicAlbum
      date published: 2023-12-13
    genre: deathcore
    isrc code: QZTBE2344410
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T01:11:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbd795de82b4692cf962bf57199bcea5c05054c33af43822a638f1d9f0e985306
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956425
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956425
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTBE2344410
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T01:28:11Z
    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 0xbd795de82b4692cf962bf57199bcea5c05054c33af43822a638f1d9f0e985306. Chain 2 (Bitcoin): anchored in block 956425 (2026-07-03T01:28:11Z), 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/QZTBE2344410.
      date published: 2026-07-03T01:28:11Z
    audio: 13
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 160.19
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.286
      additional property: Energy
        type: PropertyValue
        value: 0.959
      additional property: Speechiness
        type: PropertyValue
        value: 0.116
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.066
      additional property: Liveness
        type: PropertyValue
        value: 0.664
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.085
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.924
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Ignorance
  type: MusicAlbum
  date published: 2025-02-01