Aku Keinonen
type: MusicGroup
genre: finnish pop
popularity: 2
followers: 406
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe92096b3d883ec6b6bc106fea78ce15c79d98d3bed7b52a3a025d97c0b816162
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954717
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954717
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f524d932-ce2e-4c3f-bbee-b32f270200d8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f524d932-ce2e-4c3f-bbee-b32f270200d8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f524d932-ce2e-4c3f-bbee-b32f270200d8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T15:47:51Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe92096b3d883ec6b6bc106fea78ce15c79d98d3bed7b52a3a025d97c0b816162","name":"Aku Keinonen","registered_at":"2026-06-21T15:01:47Z","symbol":"NIM1950366","token_address":"0xcd0dd75b73a7e70c9904ffa4b93c68f367301ebe","type":"artist","uuid":"f524d932-ce2e-4c3f-bbee-b32f270200d8"}
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 0xe92096b3d883ec6b6bc106fea78ce15c79d98d3bed7b52a3a025d97c0b816162. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f524d932-ce2e-4c3f-bbee-b32f270200d8.json and https://artists.proofprofile.net/proofs/artist/f524d932-ce2e-4c3f-bbee-b32f270200d8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T15:47:51Z
  text: {"copyright_id":"0xe92096b3d883ec6b6bc106fea78ce15c79d98d3bed7b52a3a025d97c0b816162","name":"Aku Keinonen","registered_at":"2026-06-21T15:01:47Z","symbol":"NIM1950366","token_address":"0xcd0dd75b73a7e70c9904ffa4b93c68f367301ebe","type":"artist","uuid":"f524d932-ce2e-4c3f-bbee-b32f270200d8"}
album: Lapsuuden loppu
  type: MusicAlbum
  date published: 2020-12-24
album: Paikoillaan
  type: MusicAlbum
  date published: 2020-12-28
album: Ajankuva
  type: MusicAlbum
  date published: 2021-01-01
album: Pakohuone
  type: MusicAlbum
  date published: 2024-11-08
  track: Pakohuone
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212938
    explicit: false
    by artist: Aku Keinonen
    in album: Pakohuone
      type: MusicAlbum
      date published: 2024-11-08
    genre: finnish pop
    isrc code: QZWFS2440118
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T06:18:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0eb07c8c76f8ad21a697055daaeafb15c7ff1be9806fe23e007316a49bbd73a1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958980
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958980
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFS2440118
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T07:04:12Z
    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 0x0eb07c8c76f8ad21a697055daaeafb15c7ff1be9806fe23e007316a49bbd73a1. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/QZWFS2440118.
      date published: 2026-07-21T07:04:12Z
    audio: Pakohuone
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 113.975
      additional property: Musical Key
        type: PropertyValue
        value: 8
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.758
      additional property: Energy
        type: PropertyValue
        value: 0.489
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.312
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.111
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.26
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.015
      additional property: Key Name
        type: PropertyValue
        value: Ab
      additional property: Mode Name
        type: PropertyValue
        value: Major