Christian Engmark
type: MusicGroup
popularity: 9
followers: 159
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6538abfb367e6119c1e44d8cc51a63a237b2557958182ca4c08cd796eb47c40e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953980
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953980
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c29235a-5f60-475c-85ab-584b2825afbb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2c29235a-5f60-475c-85ab-584b2825afbb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2c29235a-5f60-475c-85ab-584b2825afbb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T17:16:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6538abfb367e6119c1e44d8cc51a63a237b2557958182ca4c08cd796eb47c40e","name":"Christian Engmark","registered_at":"2026-06-16T05:00:52Z","symbol":"NIM0945218","token_address":"0x704646d47cd40072857bf4ea5537fbcee0235a28","type":"artist","uuid":"2c29235a-5f60-475c-85ab-584b2825afbb"}
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 0x6538abfb367e6119c1e44d8cc51a63a237b2557958182ca4c08cd796eb47c40e. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c29235a-5f60-475c-85ab-584b2825afbb.json and https://artists.proofprofile.net/proofs/artist/2c29235a-5f60-475c-85ab-584b2825afbb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x6538abfb367e6119c1e44d8cc51a63a237b2557958182ca4c08cd796eb47c40e","name":"Christian Engmark","registered_at":"2026-06-16T05:00:52Z","symbol":"NIM0945218","token_address":"0x704646d47cd40072857bf4ea5537fbcee0235a28","type":"artist","uuid":"2c29235a-5f60-475c-85ab-584b2825afbb"}
album: Sing Between Friends
  type: MusicAlbum
  date published: 2019-04-01
  track: Gud er min hyrde
    type: MusicRecording
    duration: PT2M34S
    duration ms: 154634
    explicit: false
    by artist: Christian Engmark
    in album: Sing Between Friends
      type: MusicAlbum
      date published: 2019-04-01
    isrc code: DKGS51800112
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T10:58:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7b1b27090eaedcd2f9dbf8dcf219210fc0bb693453d2f8082b0e71b4b54ae2cc
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKGS51800112
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T12:24:55Z
    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 0x7b1b27090eaedcd2f9dbf8dcf219210fc0bb693453d2f8082b0e71b4b54ae2cc. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/DKGS51800112.
      date published: 2026-07-19T12:24:55Z
    audio: Gud er min hyrde
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.75
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.496
      additional property: Energy
        type: PropertyValue
        value: 0.194
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.785
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.146
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.428
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.898
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Gumles Julesang
  type: MusicAlbum
  date published: 2019-11-01
album: GUD ER
  type: MusicAlbum
  date published: 2022-05-13
album: Nu Er Det December
  type: MusicAlbum
  date published: 2023-11-17
album: Rejsen Mod Lyset
  type: MusicAlbum
  date published: 2024-11-12