Wojtek
type: MusicGroup
genre: doom metal
genre: grindcore
genre: sludge metal
popularity: 5
followers: 586
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0a2647718c51f9bda0320bb1a93bc859a734064c9aa594b8c1cbb4b5ca363108
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954025
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954025
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/386aec5f-d4e2-4427-a6eb-2b2f2dc7b770.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/386aec5f-d4e2-4427-a6eb-2b2f2dc7b770.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/386aec5f-d4e2-4427-a6eb-2b2f2dc7b770
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T00:32:47Z
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 0x0a2647718c51f9bda0320bb1a93bc859a734064c9aa594b8c1cbb4b5ca363108. Chain 2 (Bitcoin): anchored in block 954025 (2026-06-17T00:32:47Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/386aec5f-d4e2-4427-a6eb-2b2f2dc7b770.json and https://artists.proofprofile.net/proofs/artist/386aec5f-d4e2-4427-a6eb-2b2f2dc7b770.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T00:32:47Z
album: Self Titled
  type: MusicAlbum
  date published: 2019-08-27
album: Hymn for the Leftovers
  type: MusicAlbum
  date published: 2020-04-10
album: Does This Dream Slow Down, Until It Stops?
  type: MusicAlbum
  date published: 2021-01-26
album: Giorni Persi
  type: MusicAlbum
  date published: 2023-08-15
album: Petricore
  type: MusicAlbum
  date published: 2023-09-19
album: E quando il sole si spegnerà, saremo noi a bruciare il cielo
  type: MusicAlbum
  date published: 2025-03-28
  track: E quando il sole si spegnerà, saremo noi a bruciare il cielo
    type: MusicRecording
    duration: PT4M8S
    duration ms: 248210
    explicit: false
    by artist: Wojtek
    in album: E quando il sole si spegnerà, saremo noi a bruciare il cielo
      type: MusicAlbum
      date published: 2025-03-28
    genre: doom metal
    genre: grindcore
    genre: sludge metal
    isrc code: TCAJJ2558479
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T01:22:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x41ca1bd0304d7421dc42c22e62aa14842b070c8bc3823881b94df6dd0073b659
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJJ2558479
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:26:17Z
    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 0x41ca1bd0304d7421dc42c22e62aa14842b070c8bc3823881b94df6dd0073b659. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/TCAJJ2558479.
      date published: 2026-07-06T01:26:17Z
    audio: E quando il sole si spegnerà, saremo noi a bruciare il cielo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.098
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.421
      additional property: Energy
        type: PropertyValue
        value: 0.985
      additional property: Speechiness
        type: PropertyValue
        value: 0.086
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.001
      additional property: Liveness
        type: PropertyValue
        value: 0.233
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.134
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.523
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Nell'abisso del mio io
  type: MusicAlbum
  date published: 2025-04-16