Stefski & Hutch
type: MusicGroup
popularity: 7
followers: 1044
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xce387ed8322bc16ce421e56e9aadd17d49867b7a0978523c0d1c553f9b906346
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8ef94f5-191c-4876-a11d-5199e0afbf1c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8ef94f5-191c-4876-a11d-5199e0afbf1c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d8ef94f5-191c-4876-a11d-5199e0afbf1c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xce387ed8322bc16ce421e56e9aadd17d49867b7a0978523c0d1c553f9b906346","name":"Stefski & Hutch","registered_at":"2026-06-21T03:46:59Z","symbol":"NIM1809920","token_address":"0x1cd113e4695914f3c60ce21bc927de15ef74a43e","type":"artist","uuid":"d8ef94f5-191c-4876-a11d-5199e0afbf1c"}
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 0xce387ed8322bc16ce421e56e9aadd17d49867b7a0978523c0d1c553f9b906346. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8ef94f5-191c-4876-a11d-5199e0afbf1c.json and https://artists.proofprofile.net/proofs/artist/d8ef94f5-191c-4876-a11d-5199e0afbf1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0xce387ed8322bc16ce421e56e9aadd17d49867b7a0978523c0d1c553f9b906346","name":"Stefski & Hutch","registered_at":"2026-06-21T03:46:59Z","symbol":"NIM1809920","token_address":"0x1cd113e4695914f3c60ce21bc927de15ef74a43e","type":"artist","uuid":"d8ef94f5-191c-4876-a11d-5199e0afbf1c"}
album: Classic Rock?!? - EP
  type: MusicAlbum
  date published: 2012-05-12
album: Nie ma mnie wcale
  type: MusicAlbum
  date published: 2018-09-28
album: Tajemnica
  type: MusicAlbum
  date published: 2019-11-08
album: Wymyśliłem ciebie
  type: MusicAlbum
  date published: 2020-01-31
album: Piosenki z kraju apokalipsy
  type: MusicAlbum
  date published: 2020-02-07
album: For Long Centuries (Extended)
  type: MusicAlbum
  date published: 2021-07-30
album: For Long Centuries (Radio Edit)
  type: MusicAlbum
  date published: 2021-07-30
album: Taki Sam (Radio Edit)
  type: MusicAlbum
  date published: 2023-06-15
album: Selling Lies (Radio Edit)
  type: MusicAlbum
  date published: 2024-02-02
album: Selling Lies
  type: MusicAlbum
  date published: 2024-04-26
album: Live Session For The SoundLab UK
  type: MusicAlbum
  date published: 2024-11-14
album: Into An End
  type: MusicAlbum
  date published: 2024-11-29
  track: Into An End - Radio Edit
    type: MusicRecording
    duration: PT3M29S
    duration ms: 209633
    explicit: false
    by artist: Stefski & Hutch
    in album: Into An End
      type: MusicAlbum
      date published: 2024-11-29
    isrc code: PLA552401077
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T01:11:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdb42713ea8cb68e2e6f08c31bc7b326ffcc9db0078bae78d898bbacc20d7fd4e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958480
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958480
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA552401077
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T02:58:58Z
    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 0xdb42713ea8cb68e2e6f08c31bc7b326ffcc9db0078bae78d898bbacc20d7fd4e. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/PLA552401077.
      date published: 2026-07-18T02:58:58Z
    audio: Into An End - Radio Edit
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.975
      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: 0.476
      additional property: Energy
        type: PropertyValue
        value: 0.579
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      additional property: Acousticness
        type: PropertyValue
        value: 0
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.517
      additional property: Liveness
        type: PropertyValue
        value: 0.247
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.496
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.967
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Who By Fire
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207418
    explicit: false
    by artist: Stefski & Hutch
    in album: Into An End
      type: MusicAlbum
      date published: 2024-11-29
    isrc code: PLA552401078
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T08:36:39+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x489b709e22093b01c1f228aa4783297ce6567d5ccf1c75f41a67e77b08be6673
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLA552401078
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x489b709e22093b01c1f228aa4783297ce6567d5ccf1c75f41a67e77b08be6673. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PLA552401078.
      date published: 2026-07-04T10:04:33Z
    audio: Who By Fire
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.029
      additional property: Musical Key
      additional property: Mode (Major/Minor)
      additional property: Time Signature
      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

Musical Key
type: PropertyValue
value: 9

Mode (Major/Minor)
type: PropertyValue
value: 0

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.476

Energy
type: PropertyValue
value: 0.932

Speechiness
type: PropertyValue
value: 0.034

Acousticness
type: PropertyValue
value: 0

Instrumentalness
type: PropertyValue
value: 0.025

Liveness
type: PropertyValue
value: 0.114

Valence (Positivity)
type: PropertyValue
value: 0.849

Loudness (dB)
type: PropertyValue
value: -7.368

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor