Leopold Wallner
type: MusicGroup
popularity: 2
followers: 27
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9f33ebfe9ed74472410f185c3e339cab8a5800922d31949f6f0d122d31e769d8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7c0f95f-6a18-48d1-8a27-c56c4c6c4cfd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7c0f95f-6a18-48d1-8a27-c56c4c6c4cfd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7c0f95f-6a18-48d1-8a27-c56c4c6c4cfd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9f33ebfe9ed74472410f185c3e339cab8a5800922d31949f6f0d122d31e769d8","name":"Leopold Wallner","registered_at":"2026-06-20T08:22:19Z","symbol":"NIM1563816","token_address":"0xfd8e2b7a547188da872c9334887123ca62982782","type":"artist","uuid":"a7c0f95f-6a18-48d1-8a27-c56c4c6c4cfd"}
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 0x9f33ebfe9ed74472410f185c3e339cab8a5800922d31949f6f0d122d31e769d8. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7c0f95f-6a18-48d1-8a27-c56c4c6c4cfd.json and https://artists.proofprofile.net/proofs/artist/a7c0f95f-6a18-48d1-8a27-c56c4c6c4cfd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x9f33ebfe9ed74472410f185c3e339cab8a5800922d31949f6f0d122d31e769d8","name":"Leopold Wallner","registered_at":"2026-06-20T08:22:19Z","symbol":"NIM1563816","token_address":"0xfd8e2b7a547188da872c9334887123ca62982782","type":"artist","uuid":"a7c0f95f-6a18-48d1-8a27-c56c4c6c4cfd"}
album: Leopold Wallner: Suite Polonaise, Rhapsodie Russe, Mazurka de concert, Berceuse, Élégie et Rêverie
  type: MusicAlbum
  date published: 2013
album: Leopold Wallner: Suite Polonaise, Rhapsodie Russe, Mazurka de concert, Berceuse, Élégie et Rêverie
  type: MusicAlbum
  date published: 2013-07-11
track: Elégie for Cor Anglais and Piano
  type: MusicRecording
  duration: PT7M23S
  duration ms: 443200
  explicit: false
  by artist: Leopold Wallner
  by artist: Martin Frutiger
  by artist: Petya Mihneva
  in album: Elegy: Music for Cor Anglais, Vol. 2
    type: MusicAlbum
    date published: 2018-01-26
  isrc code: UKL8J1700072
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-31T10:34:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x048a4b0095fed3f254bfe9c16091e9a3447f28ecd16d2d11bcfe4800dc7f746e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960397
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960397
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKL8J1700072
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-31T12:24:41Z
  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 0x048a4b0095fed3f254bfe9c16091e9a3447f28ecd16d2d11bcfe4800dc7f746e. Chain 2 (Bitcoin): anchored in block 960397 (2026-07-31T12:24:41Z), 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/UKL8J1700072.
    date published: 2026-07-31T12:24:41Z
  audio: Elégie for Cor Anglais and Piano
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 98.706
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.22
    additional property: Energy
      type: PropertyValue
      value: 0.04
    additional property: Speechiness
      type: PropertyValue
      value: 0.042
    additional property: Acousticness
      type: PropertyValue
      value: 0.974
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.94
    additional property: Liveness
      type: PropertyValue
      value: 0.072
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.037
    additional property: Loudness (dB)
      type: PropertyValue
      value: -27.418
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor