Klastos
type: MusicGroup
genre: doom metal
genre: sludge metal
popularity: 6
followers: 336
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5eca4979b06f9e97fae7f4bcc7bcece29f804ac083b460f0dc45d69b94fe439f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953936
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953936
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fd38e8b-a634-40ba-8665-c5211f0c876b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1fd38e8b-a634-40ba-8665-c5211f0c876b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1fd38e8b-a634-40ba-8665-c5211f0c876b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:24:55Z
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 0x5eca4979b06f9e97fae7f4bcc7bcece29f804ac083b460f0dc45d69b94fe439f. Chain 2 (Bitcoin): anchored in block 953936 (2026-06-16T11:24:55Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1fd38e8b-a634-40ba-8665-c5211f0c876b.json and https://artists.proofprofile.net/proofs/artist/1fd38e8b-a634-40ba-8665-c5211f0c876b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:24:55Z
album: Silver God
  type: MusicAlbum
  date published: 2021-11-07
album: RAT KING
  type: MusicAlbum
  date published: 2023-02-18
album: KNIVES AND CROSSES
  type: MusicAlbum
  date published: 2024-12-13
album: POOR LITTLE THING
  type: MusicAlbum
  date published: 2025-01-17
album: BORN TO RUIN
  type: MusicAlbum
  date published: 2025-02-14
  track: KNIVES AND CROSSES
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214370
    explicit: false
    by artist: Klastos
    in album: BORN TO RUIN
      type: MusicAlbum
      date published: 2025-02-14
    genre: doom metal
    genre: sludge metal
    isrc code: SEYOK2432138
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T12:14:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf5cbe07bb7e63c723ea91411ba20918f9961a040d8d8a660c2d85f78d55281d0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958415
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958415
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/SEYOK2432138
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T12:50:13Z
    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 0xf5cbe07bb7e63c723ea91411ba20918f9961a040d8d8a660c2d85f78d55281d0. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/SEYOK2432138.
      date published: 2026-07-17T12:50:13Z
    audio: KNIVES AND CROSSES
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.066
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.293
      additional property: Energy
        type: PropertyValue
        value: 0.903
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.71
      additional property: Liveness
        type: PropertyValue
        value: 0.306
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.376
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.334
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major