Kælderposen
type: MusicGroup
popularity: 5
followers: 69
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xeb15f49564840a8d19f9082cd3dfa75e67f8d4e2733050218626dcb464462984
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/900f13cd-1652-46eb-95f0-4e22efcf6b32.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/900f13cd-1652-46eb-95f0-4e22efcf6b32.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/900f13cd-1652-46eb-95f0-4e22efcf6b32
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xeb15f49564840a8d19f9082cd3dfa75e67f8d4e2733050218626dcb464462984","name":"Kælderposen","registered_at":"2026-06-17T15:57:04Z","symbol":"NIM1445290","token_address":"0x506e9f39dd9868308e40ff8700e3f309693a9065","type":"artist","uuid":"900f13cd-1652-46eb-95f0-4e22efcf6b32"}
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 0xeb15f49564840a8d19f9082cd3dfa75e67f8d4e2733050218626dcb464462984. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/900f13cd-1652-46eb-95f0-4e22efcf6b32.json and https://artists.proofprofile.net/proofs/artist/900f13cd-1652-46eb-95f0-4e22efcf6b32.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xeb15f49564840a8d19f9082cd3dfa75e67f8d4e2733050218626dcb464462984","name":"Kælderposen","registered_at":"2026-06-17T15:57:04Z","symbol":"NIM1445290","token_address":"0x506e9f39dd9868308e40ff8700e3f309693a9065","type":"artist","uuid":"900f13cd-1652-46eb-95f0-4e22efcf6b32"}
track: Liquid Cocaine (feat. Ataf, Mortito, Paulo, Kælderposen & Jokeren)
  type: MusicRecording
  duration: PT4M29S
  duration ms: 269696
  explicit: false
  by artist: Clemens
  by artist: Ataf
  by artist: Jokeren
  by artist: Kælderposen
  by artist: Mortito
  by artist: Paulo
  in album: Den Anden Verden 2.0
    type: MusicAlbum
    date published: 2018-03-02
  genre: danish-pop
  genre: danish-hip-hop
  isrc code: DK9Y51700101
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-07T03:23:31+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x61e4e36ebb90dc66ed5951836c88dad81ab41f0add8852faaf668ba14d7b0f92
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DK9Y51700101
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x61e4e36ebb90dc66ed5951836c88dad81ab41f0add8852faaf668ba14d7b0f92. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/DK9Y51700101.
    date published: 2026-07-08T03:20:19Z
  audio: Liquid Cocaine (feat. Ataf, Mortito, Paulo, Kælderposen & Jokeren)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 153.561
    additional property: Musical Key
      type: PropertyValue
      value: 11
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.684
    additional property: Energy
      type: PropertyValue
      value: 0.718
    additional property: Speechiness
      type: PropertyValue
      value: 0.354
    additional property: Acousticness
      type: PropertyValue
      value: 0.103
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.073
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.367
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.848
    additional property: Key Name
      type: PropertyValue
      value: B
    additional property: Mode Name
      type: PropertyValue
      value: Minor