Catsclaw
type: MusicGroup
genre: deathcore
genre: djent
genre: metalcore
popularity: 21
followers: 6308
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1228e650f1ff7b2bdb08939698995e215488dc2867c82276c5a98ba4b7c95f2b
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/7a9c7145-8eaf-496e-af80-a857468e9862.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a9c7145-8eaf-496e-af80-a857468e9862.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a9c7145-8eaf-496e-af80-a857468e9862
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
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 0x1228e650f1ff7b2bdb08939698995e215488dc2867c82276c5a98ba4b7c95f2b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a9c7145-8eaf-496e-af80-a857468e9862.json and https://artists.proofprofile.net/proofs/artist/7a9c7145-8eaf-496e-af80-a857468e9862.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
album: Human Fission
  type: MusicAlbum
  date published: 2023-02-08
album: Passenger
  type: MusicAlbum
  date published: 2023-02-24
album: Human Fission
  type: MusicAlbum
  date published: 2023-03-24
  track: Malfeasance
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206114
    explicit: false
    by artist: Catsclaw
    in album: Human Fission
      type: MusicAlbum
      date published: 2023-03-24
    genre: deathcore
    genre: djent
    genre: metalcore
    isrc code: QZES52392338
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T18:37:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x24c0d3d7045e04ad7f1f8bdebcb1bd3fa30fa832bc7cadc47f1c082046d58d86
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957744
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957744
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52392338
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T19:15:44Z
    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 0x24c0d3d7045e04ad7f1f8bdebcb1bd3fa30fa832bc7cadc47f1c082046d58d86. Chain 2 (Bitcoin): anchored in block 957744 (2026-07-12T19:15:44Z), 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/QZES52392338.
      date published: 2026-07-12T19:15:44Z
    audio: Malfeasance
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.945
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.248
      additional property: Energy
        type: PropertyValue
        value: 0.98
      additional property: Speechiness
        type: PropertyValue
        value: 0.13
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.111
      additional property: Liveness
        type: PropertyValue
        value: 0.406
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.2
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.562
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Human Fission
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194789
    explicit: false
    by artist: Catsclaw
    in album: Human Fission
      type: MusicAlbum
      date published: 2023-03-24
    genre: deathcore
    genre: djent
    genre: metalcore
    isrc code: QZDA52306763
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T19:40:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x182f61a4e7111c7d9603517ddba90e35895c3139a696840eba770e4333c2070b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958774
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958774
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52306763
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T22:42:36Z
    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 0x182f61a4e7111c7d9603517ddba90e35895c3139a696840eba770e4333c2070b. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:42:36Z), 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/QZDA52306763.
      date published: 2026-07-19T22:42:36Z
    audio: Human Fission
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.033
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.393
      additional property: Energy
        type: PropertyValue
        value: 0.993
      additional property: Speechiness
        type: PropertyValue
        value: 0.189
      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
  track: Half Life
  track: Passenger
album: Namesake
album: Become The Blade
album: The Old Way
album: Perfect Death

Instrumentalness
type: PropertyValue
value: 0.332

Liveness
type: PropertyValue
value: 0.322

Valence (Positivity)
type: PropertyValue
value: 0.223

Loudness (dB)
type: PropertyValue
value: -2.946

Key Name
type: PropertyValue
value: Ab

Mode Name
type: PropertyValue
value: Major

Half Life
type: MusicRecording
duration: PT4M0S
duration ms: 240928
explicit: false
by artist: Catsclaw
in album: Human Fission
  type: MusicAlbum
  date published: 2023-03-24
genre: deathcore
genre: djent
genre: metalcore
isrc code: QZES52392340
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-12T18:59:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1d9a8003d2aecf3df1cc2b574e3579a5aa891affa0310650ddca48b15d55813f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957745
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957745
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES52392340
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-12T19:20:20Z
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 0x1d9a8003d2aecf3df1cc2b574e3579a5aa891affa0310650ddca48b15d55813f. Chain 2 (Bitcoin): anchored in block 957745 (2026-07-12T19:20:20Z), 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/QZES52392340.
  date published: 2026-07-12T19:20:20Z
audio: Half Life
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 119.949
  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: 0.31
  additional property: Energy
    type: PropertyValue
    value: 0.967
  additional property: Speechiness
    type: PropertyValue
    value: 0.17
  additional property: Acousticness
    type: PropertyValue
    value: 0.001
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.143
  additional property: Liveness
    type: PropertyValue
    value: 0.273
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.118
  additional property: Loudness (dB)
    type: PropertyValue
    value: -4.092
  additional property: Key Name
    type: PropertyValue
    value: C#
  additional property: Mode Name
    type: PropertyValue
    value: Major

Passenger
type: MusicRecording
duration: PT3M52S
duration ms: 232461
explicit: false
by artist: Catsclaw
in album: Human Fission
  type: MusicAlbum
  date published: 2023-03-24
genre: deathcore
genre: djent
genre: metalcore
isrc code: QZDA62371234
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-04T22:26:25+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc6fb1112ac77a14e6372b6bb651e4f24a520b0cb09cfdf7430fad885f8a07328
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956728
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA62371234
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-05T01:43:49Z
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 0xc6fb1112ac77a14e6372b6bb651e4f24a520b0cb09cfdf7430fad885f8a07328. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/QZDA62371234.
  date published: 2026-07-05T01:43:49Z
audio: Passenger
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 100.647
  additional property: Musical Key
    type: PropertyValue
    value: 10
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 4
  additional property: Danceability
    type: PropertyValue
    value: 0.227
  additional property: Energy
    type: PropertyValue
    value: 0.947
  additional property: Speechiness
    type: PropertyValue
    value: 0.155
  additional property: Acousticness
    type: PropertyValue
    value: 0
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.072
  additional property: Liveness
    type: PropertyValue
    value: 0.363
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.098
  additional property: Loudness (dB)
    type: PropertyValue
    value: -3.656
  additional property: Key Name
    type: PropertyValue
    value: Bb
  additional property: Mode Name
    type: PropertyValue
    value: Major

Namesake
type: MusicAlbum
date published: 2023-12-28

Become The Blade
type: MusicAlbum
date published: 2024-03-13

The Old Way
type: MusicAlbum
date published: 2025-06-24

Perfect Death
type: MusicAlbum
date published: 2025-08-12

Perfect Death
type: MusicAlbum
date published: 2025-09-16