Die Original Maaskapelle
type: MusicGroup
genre: polka
popularity: 10
followers: 320
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2cc2ba6c64a26f1655c76fbd8f552e56d095f0be3494256903d3cf888e72218b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953949
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953949
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1925371c-fed0-4bae-b09f-81dc64688b6f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1925371c-fed0-4bae-b09f-81dc64688b6f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1925371c-fed0-4bae-b09f-81dc64688b6f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:28:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2cc2ba6c64a26f1655c76fbd8f552e56d095f0be3494256903d3cf888e72218b","name":"Die Original Maaskapelle","registered_at":"2026-06-15T22:13:29Z","symbol":"NIM0847933","token_address":"0xa6265abef3c569347e63011a03c80ed60c16eea5","type":"artist","uuid":"1925371c-fed0-4bae-b09f-81dc64688b6f"}
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 0x2cc2ba6c64a26f1655c76fbd8f552e56d095f0be3494256903d3cf888e72218b. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1925371c-fed0-4bae-b09f-81dc64688b6f.json and https://artists.proofprofile.net/proofs/artist/1925371c-fed0-4bae-b09f-81dc64688b6f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x2cc2ba6c64a26f1655c76fbd8f552e56d095f0be3494256903d3cf888e72218b","name":"Die Original Maaskapelle","registered_at":"2026-06-15T22:13:29Z","symbol":"NIM0847933","token_address":"0xa6265abef3c569347e63011a03c80ed60c16eea5","type":"artist","uuid":"1925371c-fed0-4bae-b09f-81dc64688b6f"}
album: Diamant
  type: MusicAlbum
  date published: 2012-09-01
album: Euver de Maasbrök
  type: MusicAlbum
  date published: 2014-04-10
album: Euver de Maasbrök
  type: MusicAlbum
  date published: 2014-04-10
  track: Euver de Maasbrök
    type: MusicRecording
    duration: PT2M21S
    duration ms: 141000
    explicit: false
    by artist: Die Original Maaskapelle
    in album: Euver de Maasbrök
      type: MusicAlbum
      date published: 2014-04-10
    genre: polka
    isrc code: NLG930900104
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T21:29:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x276eb06eab7e08f75fcd950b387c5b66749f2b3f9ceb80d705178eccee3b5f7a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG930900104
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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 0x276eb06eab7e08f75fcd950b387c5b66749f2b3f9ceb80d705178eccee3b5f7a. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/NLG930900104.
      date published: 2026-07-05T01:43:49Z
    audio: Euver de Maasbrök
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.272
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.606
      additional property: Energy
        type: PropertyValue
        value: 0.798
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.439
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.825
      additional property: Liveness
        type: PropertyValue
        value: 0.215
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.966
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.258
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Het beste van die Original Maaskapelle
  type: MusicAlbum
  date published: 2014-05-13
  track: Wir Maasspatzen
    type: MusicRecording
    duration: PT3M20S
    duration ms: 200000
    explicit: false
    by artist: Die Original Maaskapelle
    in album: Het beste van die Original Maaskapelle
      type: MusicAlbum
      date published: 2014-05-13
    genre: polka
    isrc code: NLG340600079
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T12:43:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x77f3c64eb94f4ce041510cd405605f2e4d59429f11c7554c980d92a2f2d592d6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLG340600079
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x77f3c64eb94f4ce041510cd405605f2e4d59429f11c7554c980d92a2f2d592d6. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/NLG340600079.
      date published: 2026-07-05T19:27:56Z
    audio: Wir Maasspatzen
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.329
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.729
      additional property: Energy
        type: PropertyValue
        value: 0.521
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.361
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Veur eederein get

Instrumentalness
type: PropertyValue
value: 0.471

Liveness
type: PropertyValue
value: 0.07

Valence (Positivity)
type: PropertyValue
value: 0.959

Loudness (dB)
type: PropertyValue
value: -10.223

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Major

Het beste van die Original Maaskapelle
type: MusicAlbum
date published: 2014-05-13

Veur eederein get
type: MusicAlbum
date published: 2014-05-19

Veur eederein get
type: MusicAlbum
date published: 2014-05-19