Maria Køhnke
type: MusicGroup
popularity: 6
followers: 129
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbc8dac51bc65d350bfcbe1b4e060f4ee038befb0085612cb4e118846f9da818f
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/c4054b86-80e6-4b79-b6b4-148ca9dcadca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c4054b86-80e6-4b79-b6b4-148ca9dcadca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c4054b86-80e6-4b79-b6b4-148ca9dcadca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbc8dac51bc65d350bfcbe1b4e060f4ee038befb0085612cb4e118846f9da818f","name":"Maria Køhnke","registered_at":"2026-06-20T20:14:31Z","symbol":"NIM1703363","token_address":"0x8522e13f3e431020794cd5011e431010e858f92d","type":"artist","uuid":"c4054b86-80e6-4b79-b6b4-148ca9dcadca"}
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 0xbc8dac51bc65d350bfcbe1b4e060f4ee038befb0085612cb4e118846f9da818f. 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/c4054b86-80e6-4b79-b6b4-148ca9dcadca.json and https://artists.proofprofile.net/proofs/artist/c4054b86-80e6-4b79-b6b4-148ca9dcadca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0xbc8dac51bc65d350bfcbe1b4e060f4ee038befb0085612cb4e118846f9da818f","name":"Maria Køhnke","registered_at":"2026-06-20T20:14:31Z","symbol":"NIM1703363","token_address":"0x8522e13f3e431020794cd5011e431010e858f92d","type":"artist","uuid":"c4054b86-80e6-4b79-b6b4-148ca9dcadca"}
album: Collector
  type: MusicAlbum
  date published: 2007-04-10
album: Collector
  type: MusicAlbum
  date published: 2007-04-10
album: Don't Look at Me
  type: MusicAlbum
  date published: 2020-05-15
album: Sweetness
  type: MusicAlbum
  date published: 2020-07-03
album: Don't Look
  type: MusicAlbum
  date published: 2020-09-11
album: Sportscar
  type: MusicAlbum
  date published: 2023-10-27
album: State of Confusion
  type: MusicAlbum
  date published: 2024-05-31
album: Nobody (Feels Any Pain)
  type: MusicAlbum
  date published: 2025-05-02
track: Hurt You Once Again
  type: MusicRecording
  duration: PT4M11S
  duration ms: 251453
  explicit: false
  by artist: Kalaha
  by artist: Hjalte Ross
  by artist: Maria Køhnke
  in album: Mystafa
    type: MusicAlbum
    date published: 2021-02-05
  genre: danish-modern-jazz
  isrc code: DKY302000804
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-08-01T02:01:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd0604cc656484926fd84f380d7d2c5abb17ff2795a6d9e61c5a18ded4550a3e5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960497
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960497
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DKY302000804
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-08-01T02:22:04Z
  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 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 0xd0604cc656484926fd84f380d7d2c5abb17ff2795a6d9e61c5a18ded4550a3e5. Chain 2 (Bitcoin): anchored in block 960497 (2026-08-01T02:22:04Z), 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/DKY302000804.
    date published: 2026-08-01T02:22:04Z
  audio: Hurt You Once Again
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 164.259
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.342
    additional property: Energy
      type: PropertyValue
      value: 0.471
    additional property: Speechiness
      type: PropertyValue
      value: 0.067
    additional property: Acousticness
      type: PropertyValue
      value: 0.161
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.034
    additional property: Liveness
      type: PropertyValue
      value: 0.123
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.075
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.726
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor