Compania Feat. den Hauptstadtclub
type: MusicGroup
popularity: 3
followers: 190
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf19db7fca957b972a4fff9d1c7f80a9b53ff3e69b7c0678f1b0fc6bd2379edf0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d53399c0-18c3-4b49-bcaa-fea31a4f123f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d53399c0-18c3-4b49-bcaa-fea31a4f123f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d53399c0-18c3-4b49-bcaa-fea31a4f123f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf19db7fca957b972a4fff9d1c7f80a9b53ff3e69b7c0678f1b0fc6bd2379edf0","name":"Compania Feat. den Hauptstadtclub","registered_at":"2026-06-21T02:48:24Z","symbol":"NIM1796181","token_address":"0xaef2b5490502158482dc9eb94ccd27ba8eea9dbb","type":"artist","uuid":"d53399c0-18c3-4b49-bcaa-fea31a4f123f"}
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 0xf19db7fca957b972a4fff9d1c7f80a9b53ff3e69b7c0678f1b0fc6bd2379edf0. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d53399c0-18c3-4b49-bcaa-fea31a4f123f.json and https://artists.proofprofile.net/proofs/artist/d53399c0-18c3-4b49-bcaa-fea31a4f123f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf19db7fca957b972a4fff9d1c7f80a9b53ff3e69b7c0678f1b0fc6bd2379edf0","name":"Compania Feat. den Hauptstadtclub","registered_at":"2026-06-21T02:48:24Z","symbol":"NIM1796181","token_address":"0xaef2b5490502158482dc9eb94ccd27ba8eea9dbb","type":"artist","uuid":"d53399c0-18c3-4b49-bcaa-fea31a4f123f"}
album: Die Jungs von der Spree
  type: MusicAlbum
  date published: 2011-01-15
  track: Die Jungs von der Spree
    type: MusicRecording
    duration: PT3M11S
    duration ms: 191288
    explicit: false
    by artist: Compania Feat. den Hauptstadtclub
    in album: Die Jungs von der Spree
      type: MusicAlbum
      date published: 2011-01-15
    isrc code: DEBL60868923
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T06:17:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdf7aecc2e16195b1485c9ea9d4618a3499aa0f1676e09132b3d11c243d986b86
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEBL60868923
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0xdf7aecc2e16195b1485c9ea9d4618a3499aa0f1676e09132b3d11c243d986b86. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/DEBL60868923.
      date published: 2026-07-04T11:19:20Z
    audio: Die Jungs von der Spree
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 111.997
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.689
      additional property: Energy
        type: PropertyValue
        value: 0.917
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.112
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.411
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.912
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.055
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major