Necrofear US
type: MusicGroup
genre: deathcore
popularity: 8
followers: 472
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x43ae986d36c261f47c602dfea81cc9358a3ea0302cee0819304cf37ffa3e0ea8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e41ae317-548b-43ba-906e-156d5cb8c8b5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e41ae317-548b-43ba-906e-156d5cb8c8b5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e41ae317-548b-43ba-906e-156d5cb8c8b5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x43ae986d36c261f47c602dfea81cc9358a3ea0302cee0819304cf37ffa3e0ea8","name":"Necrofear US","registered_at":"2026-06-21T08:02:43Z","symbol":"NIM1865504","token_address":"0xacfe439d4558f266ab3a8bdae60dcd793582927c","type":"artist","uuid":"e41ae317-548b-43ba-906e-156d5cb8c8b5"}
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 0x43ae986d36c261f47c602dfea81cc9358a3ea0302cee0819304cf37ffa3e0ea8. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e41ae317-548b-43ba-906e-156d5cb8c8b5.json and https://artists.proofprofile.net/proofs/artist/e41ae317-548b-43ba-906e-156d5cb8c8b5.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x43ae986d36c261f47c602dfea81cc9358a3ea0302cee0819304cf37ffa3e0ea8","name":"Necrofear US","registered_at":"2026-06-21T08:02:43Z","symbol":"NIM1865504","token_address":"0xacfe439d4558f266ab3a8bdae60dcd793582927c","type":"artist","uuid":"e41ae317-548b-43ba-906e-156d5cb8c8b5"}
album: Obliteration
  type: MusicAlbum
  date published: 2024-06-22
album: Recreant
  type: MusicAlbum
  date published: 2024-09-10
album: Perfection
  type: MusicAlbum
  date published: 2024-10-01
album: Crewcabanger
  type: MusicAlbum
  date published: 2024-10-15
album: The Fall of Man
  type: MusicAlbum
  date published: 2024-10-15
album: Ice Barrage (LCY Uncut Version)
  type: MusicAlbum
  date published: 2024-12-03
album: Rad Poison
  type: MusicAlbum
  date published: 2025-03-04
  track: Rad Poison
    type: MusicRecording
    duration: PT3M36S
    duration ms: 216213
    explicit: false
    by artist: Necrofear US
    in album: Rad Poison
      type: MusicAlbum
      date published: 2025-03-04
    genre: deathcore
    isrc code: QZES82530430
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-30T02:52:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7c751bbf51a8dfb786b43ec9056ef90305ad688de8dc8d74fac5953eae3ef440
    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/QZES82530430
    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 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 0x7c751bbf51a8dfb786b43ec9056ef90305ad688de8dc8d74fac5953eae3ef440. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES82530430 — a six-check JSON result.
      date published: 2026-07-02T16:51:38Z
    audio: Rad Poison
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 169.007
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.365
      additional property: Energy
        type: PropertyValue
        value: 0.985
      additional property: Speechiness
        type: PropertyValue
        value: 0.465
      additional property: Acousticness
        type: PropertyValue
        value: 0.005
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.38
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.077
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.641
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Extinction
  type: MusicAlbum
  date published: 2025-04-15
  track: Extinction
    type: MusicRecording
    duration: PT2M52S
    duration ms: 172000
    explicit: false
    by artist: Necrofear US
    in album: Extinction
      type: MusicAlbum
      date published: 2025-04-15
    genre: deathcore
    isrc code: QZK6F2525320
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T16:44:21+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x72ee3dee95f2732c99120d613b8bc1b08505b5cb7e903bc90dc0fc39891febc8
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958585
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958585
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2525320
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T17:05:16Z
    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 0x72ee3dee95f2732c99120d613b8bc1b08505b5cb7e903bc90dc0fc39891febc8. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2525320 — a six-check JSON result.
      date published: 2026-07-18T17:05:16Z
    audio: Extinction
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.921
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Turncoat
album: Cerberus
album: Hades

Danceability
type: PropertyValue
value: 0.464

Energy
type: PropertyValue
value: 0.992

Speechiness
type: PropertyValue
value: 0.181

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0.006

Liveness
type: PropertyValue
value: 0.36

Valence (Positivity)
type: PropertyValue
value: 0.135

Loudness (dB)
type: PropertyValue
value: -3.798

Key Name
type: PropertyValue
value: F#

Mode Name
type: PropertyValue
value: Major

Turncoat
type: MusicAlbum
date published: 2025-07-22

Cerberus
type: MusicAlbum
date published: 2025-09-23

Hades
type: MusicAlbum
date published: 2025-11-04