Heikki Seppanen
type: MusicGroup
genre: choral
popularity: 2
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6802c2bf7fcccc4d2b9c9f551b33f77227da7f679891dd63d26964d6e8fe24c1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3431cbc-3afc-4468-8aa1-98d004120f44.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c3431cbc-3afc-4468-8aa1-98d004120f44.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c3431cbc-3afc-4468-8aa1-98d004120f44
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6802c2bf7fcccc4d2b9c9f551b33f77227da7f679891dd63d26964d6e8fe24c1","name":"Heikki Seppanen","registered_at":"2026-06-20T20:10:32Z","symbol":"NIM1700178","token_address":"0x01e77deb0fe280049e31805cadef59174bd257c1","type":"artist","uuid":"c3431cbc-3afc-4468-8aa1-98d004120f44"}
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 0x6802c2bf7fcccc4d2b9c9f551b33f77227da7f679891dd63d26964d6e8fe24c1. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3431cbc-3afc-4468-8aa1-98d004120f44.json and https://artists.proofprofile.net/proofs/artist/c3431cbc-3afc-4468-8aa1-98d004120f44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x6802c2bf7fcccc4d2b9c9f551b33f77227da7f679891dd63d26964d6e8fe24c1","name":"Heikki Seppanen","registered_at":"2026-06-20T20:10:32Z","symbol":"NIM1700178","token_address":"0x01e77deb0fe280049e31805cadef59174bd257c1","type":"artist","uuid":"c3431cbc-3afc-4468-8aa1-98d004120f44"}
album: Merry Christmas
  type: MusicAlbum
  date published: 1994-01-01
album: Sibelius: Complete Works for Mixed Choir
  type: MusicAlbum
  date published: 2015-03-10
album: Kauneimmat Joululaulut
  type: MusicAlbum
  date published: 2013-11-01
album: Kauneimmat Joululaulut
  type: MusicAlbum
  date published: 2013-11-01
album: Christmas Songs
  type: MusicAlbum
  date published: 2001-01-01
album: Joulu Ainolassa
  type: MusicAlbum
  date published: 2000-01-01
  track: 5 Christmas Songs, Op. 1: No. 5. On hanget korkeat nietokset (High are the snowdrifts)
    type: MusicRecording
    duration: PT2M32S
    duration ms: 152746
    explicit: false
    by artist: Jean Sibelius
    by artist: Ilkka Kuusisto
    by artist: Raimo Sirkia
    by artist: Jyvaskyla Sinfonia
    by artist: Pertti Pekkanen
    in album: Joulu Ainolassa
      type: MusicAlbum
      date published: 2000-01-01
    genre: classical
    genre: impressionism
    genre: post-romantic-era
    genre: finnish-classical
    isrc code: FINDE9600130
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T18:51:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf0ecc8927ef6cfe9b5cfd059cb8b1734ea70350d8f6ad91e81fa1bb2210ab1f5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957122
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957122
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FINDE9600130
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:39:04Z
    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 0xf0ecc8927ef6cfe9b5cfd059cb8b1734ea70350d8f6ad91e81fa1bb2210ab1f5. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/FINDE9600130.
      date published: 2026-07-08T03:39:04Z
    audio: 5 Christmas Songs, Op. 1: No. 5. On hanget korkeat nietokset (High are the snowdrifts)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.98
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.242
      additional property: Energy
        type: PropertyValue
        value: 0.078
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.985
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.257
      additional property: Liveness
        type: PropertyValue
        value: 0.124
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.219
      additional property: Loudness (dB)
        type: PropertyValue
        value: -24.485
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Summer with Sibelius
  type: MusicAlbum
  date published: 2023-06-02
album: Joulurauha - Christmas at Turku Cathedral
  type: MusicAlbum
  date published: 2013-11-01
album: Advent
  type: MusicAlbum
  date published: 2011
album: The Essential Sibelius
  type: MusicAlbum
  date published: 2024-12-27
album: Sibelius and the Kalevala
  type: MusicAlbum
  date published: 2024-03-01
album: Sibelius: Complete Works for Mixed Choir
  type: MusicAlbum
  date published: 2015-03-10
album: Joulurauha - Christmas at Turku Cathedral
  type: MusicAlbum
  date published: 2013-11-01
album: Merry Christmas
  type: MusicAlbum
  date published: 1994-01-01
album: Joulu Ainolassa
  type: MusicAlbum
  date published: 2000-01-01
album: Christmas Songs
  type: MusicAlbum
  date published: 2001-01-01