Paulus Schäfer
type: MusicGroup
description: Paulus Schäfer (born 31 March 1978) is a guitarist, composer, and arranger from the Netherlands. A member of the Dutch Sinti-Romani, he considers Django Reinhardt his idol. (http://www.volkskrant.nl/
popularity: 7
followers: 856
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3621e949f8aa5b7cd83af23a78739fe144a134d794312ed153c2f16110ac5ecc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954035
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954035
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d28ace4-c7e5-4805-a02d-1a9df1d46782.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3d28ace4-c7e5-4805-a02d-1a9df1d46782.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3d28ace4-c7e5-4805-a02d-1a9df1d46782
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T02:39:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3621e949f8aa5b7cd83af23a78739fe144a134d794312ed153c2f16110ac5ecc","name":"Paulus Schäfer","registered_at":"2026-06-16T10:56:02Z","symbol":"NIM1030025","token_address":"0x0ff08182c9ca9e6773119e9fe30ae5bef1743122","type":"artist","uuid":"3d28ace4-c7e5-4805-a02d-1a9df1d46782"}
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 0x3621e949f8aa5b7cd83af23a78739fe144a134d794312ed153c2f16110ac5ecc. Chain 2 (Bitcoin): anchored in block 954035 (2026-06-17T02:39:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3d28ace4-c7e5-4805-a02d-1a9df1d46782.json and https://artists.proofprofile.net/proofs/artist/3d28ace4-c7e5-4805-a02d-1a9df1d46782.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T02:39:28Z
  text: {"copyright_id":"0x3621e949f8aa5b7cd83af23a78739fe144a134d794312ed153c2f16110ac5ecc","name":"Paulus Schäfer","registered_at":"2026-06-16T10:56:02Z","symbol":"NIM1030025","token_address":"0x0ff08182c9ca9e6773119e9fe30ae5bef1743122","type":"artist","uuid":"3d28ace4-c7e5-4805-a02d-1a9df1d46782"}
album: Letter to Van Gogh
  type: MusicAlbum
  date published: 2018-01-31
album: Letter to van Gogh
  type: MusicAlbum
  date published: 2018-01-31
track: Fly Me to the Moon
  type: MusicRecording
  duration: PT2M58S
  duration ms: 178026
  explicit: false
  by artist: Olli Soikkeli
  by artist: Hot Club d'Europe
  by artist: Paulus Schäfer
  in album: Django Festival 6
    type: MusicAlbum
    date published: 2013-01-23
  isrc code: NOFHH1369070
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T14:02:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x109f7f010186234c3c1d3ddac118aecb3b2f58bde82c0881296976969673a979
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960418
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960418
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NOFHH1369070
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T15:20:15Z
  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 0x109f7f010186234c3c1d3ddac118aecb3b2f58bde82c0881296976969673a979. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), 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/NOFHH1369070.
    date published: 2026-07-31T15:20:15Z
  audio: Fly Me to the Moon
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 123.35
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.653
    additional property: Energy
      type: PropertyValue
      value: 0.392
    additional property: Speechiness
      type: PropertyValue
      value: 0.067
    additional property: Acousticness
      type: PropertyValue
      value: 0.498
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.249
    additional property: Liveness
      type: PropertyValue
      value: 0.103
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.535
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.068
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major