Markus Lehtinen
type: MusicGroup
popularity: 26
followers: 21
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9640cecface7f94f19e9bfbeb2b8f6495028e51236fe432e365444570cce51d
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/c51f4370-1c2e-4f2b-b7bf-02ace533a424.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c51f4370-1c2e-4f2b-b7bf-02ace533a424.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c51f4370-1c2e-4f2b-b7bf-02ace533a424
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9640cecface7f94f19e9bfbeb2b8f6495028e51236fe432e365444570cce51d","name":"Markus Lehtinen","registered_at":"2026-06-12T09:22:45Z","symbol":"NIM0254908","token_address":"0x293620fcfb47054114d44955f4e6ef581b050088","type":"artist","uuid":"c51f4370-1c2e-4f2b-b7bf-02ace533a424"}
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 0xc9640cecface7f94f19e9bfbeb2b8f6495028e51236fe432e365444570cce51d. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c51f4370-1c2e-4f2b-b7bf-02ace533a424.json and https://artists.proofprofile.net/proofs/artist/c51f4370-1c2e-4f2b-b7bf-02ace533a424.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xc9640cecface7f94f19e9bfbeb2b8f6495028e51236fe432e365444570cce51d","name":"Markus Lehtinen","registered_at":"2026-06-12T09:22:45Z","symbol":"NIM0254908","token_address":"0x293620fcfb47054114d44955f4e6ef581b050088","type":"artist","uuid":"c51f4370-1c2e-4f2b-b7bf-02ace533a424"}
album: Vocal Recital: Groop, Monica - Christmas Carols and Arias (Loista Joulun Tahtonen!)
  type: MusicAlbum
  date published: 1995-01-01
album: Kauneimmat Joululaulut
  type: MusicAlbum
  date published: 2013-11-01
  track: Maria, Herran Piikanen (Mary, Handmaiden of the Lord)
    type: MusicRecording
    duration: PT1M49S
    duration ms: 109173
    explicit: false
    by artist: Traditional
    by artist: Tapiola Choir
    by artist: Erkki Pohjola
    in album: Kauneimmat Joululaulut
      type: MusicAlbum
      date published: 2013-11-01
    popularity: 0
    genre: bhajan
    genre: gregorian-chant
    genre: medieval
    genre: traditional-music
    isrc code: FINDE9400043
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-31T21:17:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc0afeb57578fb02e941a9b07bfc200c2e23acbb275eeaecc798f17f073369cbe
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 960468
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/960468
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FINDE9400043
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-31T21:25:57Z
    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 0xc0afeb57578fb02e941a9b07bfc200c2e23acbb275eeaecc798f17f073369cbe. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), 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/FINDE9400043 — a six-check JSON result.
      date published: 2026-07-31T21:25:57Z
    audio: Maria, Herran Piikanen (Mary, Handmaiden of the Lord)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 142.415
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.274
      additional property: Energy
        type: PropertyValue
        value: 0.053
      additional property: Speechiness
        type: PropertyValue
        value: 0.063
      additional property: Acousticness
        type: PropertyValue
        value: 0.995
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.535
      additional property: Liveness
        type: PropertyValue
        value: 0.167
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.094
      additional property: Loudness (dB)
        type: PropertyValue
        value: -28.258
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Finland 100: A Century of Finnish Classics
  type: MusicAlbum
  date published: 2016-11-11
album: Rautavaara, E.: Aleksis Kivi [Opera]
  type: MusicAlbum
  date published: 2002-01-01