Heimatland Quintett
type: MusicGroup
genre: polka
popularity: 7
followers: 1195
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x12da4e83ab506f326ab848d2e6b27d74b52a2a3e2c76aa055971c872409c974e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/473d24a6-c391-447a-9470-d3681f01421e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/473d24a6-c391-447a-9470-d3681f01421e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/473d24a6-c391-447a-9470-d3681f01421e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x12da4e83ab506f326ab848d2e6b27d74b52a2a3e2c76aa055971c872409c974e","name":"Heimatland Quintett","registered_at":"2026-06-16T14:25:07Z","symbol":"NIM1079895","token_address":"0x6828d11e388459d9f4cd1abdb30377ec2d8b2dcf","type":"artist","uuid":"473d24a6-c391-447a-9470-d3681f01421e"}
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 0x12da4e83ab506f326ab848d2e6b27d74b52a2a3e2c76aa055971c872409c974e. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/473d24a6-c391-447a-9470-d3681f01421e.json and https://artists.proofprofile.net/proofs/artist/473d24a6-c391-447a-9470-d3681f01421e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:39:10Z
  text: {"copyright_id":"0x12da4e83ab506f326ab848d2e6b27d74b52a2a3e2c76aa055971c872409c974e","name":"Heimatland Quintett","registered_at":"2026-06-16T14:25:07Z","symbol":"NIM1079895","token_address":"0x6828d11e388459d9f4cd1abdb30377ec2d8b2dcf","type":"artist","uuid":"473d24a6-c391-447a-9470-d3681f01421e"}
album: Die Musik spielt für Euch
  type: MusicAlbum
  date published: 1992
album: 20 Jahre
  type: MusicAlbum
  date published: 1997
  track: Polkafest
    type: MusicRecording
    duration: PT2M56S
    duration ms: 176586
    explicit: false
    by artist: Heimatland Quintett
    in album: 20 Jahre
      type: MusicAlbum
      date published: 1997
    genre: polka
    isrc code: ATT259710310
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T10:07:37+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x0ac66921e9d17c0e3771ee36d540301b07c0e60e10c4aa921ae2eea7cfd5732f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958143
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958143
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ATT259710310
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T10:15:04Z
    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 0x0ac66921e9d17c0e3771ee36d540301b07c0e60e10c4aa921ae2eea7cfd5732f. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/ATT259710310.
      date published: 2026-07-15T10:15:04Z
    audio: Polkafest
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.427
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.659
      additional property: Energy
        type: PropertyValue
        value: 0.606
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.691
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.977
      additional property: Liveness
        type: PropertyValue
        value: 0.284
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.984
      additional property: Loudness (dB)
        type: PropertyValue
        value: -12.504
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Schau nach vorne
  type: MusicAlbum
  date published: 2003-06-27
album: A Musi die von Herzen kommt
  type: MusicAlbum
  date published: 2007-08-22
album: Salzburg zu Weihnacht
  type: MusicAlbum
  date published: 2010-10-22
album: Kommt lasst uns fröhlich sei
  type: MusicAlbum
  date published: 2015-08-14