The Piano Classic Players
type: MusicGroup
popularity: 14
followers: 5230
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953633
additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7316eadc2b22dc62f0ea4f91d0996020afd785ca29da9ca4a0d0ed19af864725. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/34b35a00-64af-490c-9f40-17e17ab72c03.json and https://artists.proofprofile.net/proofs/artist/34b35a00-64af-490c-9f40-17e17ab72c03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T12:47:11Z
  text: {"copyright_id":"0x7316eadc2b22dc62f0ea4f91d0996020afd785ca29da9ca4a0d0ed19af864725","name":"The Piano Classic Players","registered_at":"2026-06-14T10:01:52Z","symbol":"NIM0418045","token_address":"0xda5c539492ee7ea782236c2e7e345e82ea699b6c","type":"artist","uuid":"34b35a00-64af-490c-9f40-17e17ab72c03"}
album: Piano Movie Classics
  type: MusicAlbum
  date published: 2009-03-01
album: Piano Movie Classics
  type: MusicAlbum
  date published: 2009-03-01
album: Piano & Classics (Famous Songs and Music Pieces Played on the Piano)
  type: MusicAlbum
  date published: 2014-03-19
album: Piano Bar Collector
  type: MusicAlbum
  date published: 2016-07-02
album: Classical Masterpieces On the Piano
  type: MusicAlbum
  date published: 2017-05-30
album: Classic Hits On the Piano
  type: MusicAlbum
  date published: 2017-06-08
album: Moody Piano Instrumentals
  type: MusicAlbum
  date published: 2017-08-18
album: Piano Bar Collector : 50 Timeless Songs on the Piano, Vol. 2
  type: MusicAlbum
  date published: 2017-10-05
album: Sunday Morning Classical Piano Favorites
  type: MusicAlbum
  date published: 2018-03-30
album: Instrumental Music Playlist
  type: MusicAlbum
  date published: 2019-11-26
  track: My Love (Piano Version) [Made Famous by Sia]
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    duration: PT5M8S
    duration ms: 308166
    explicit: false
    by artist: The Piano Classic Players
    in album: Instrumental Music Playlist
      type: MusicAlbum
      date published: 2019-11-26
    isrc code: FR0W62028553
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    additional property: OTSHash
    additional property: OTSBitcoinBlock
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    additional property: OTSBitcoinBlockVerifyURL
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      value: https://blockstream.info/api/block-height/958838
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR0W62028553
    additional property: OTSTimestamp
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      value: 2026-07-20T07:01:21Z
    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 0x9b86bc943d350138e70a45819ee0127a08891064f27e1e1ae5179aba3c9e83f5. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR0W62028553.
      date published: 2026-07-20T07:01:21Z
    audio: My Love (Piano Version) [Made Famous by Sia]
      type: AudioObject
      additional property: Tempo (BPM)
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        value: 91.994
      additional property: Musical Key
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        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
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        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.649
      additional property: Energy
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      additional property: Speechiness
        type: PropertyValue
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      additional property: Acousticness
        type: PropertyValue
        value: 0.994
      additional property: Instrumentalness
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        value: 0.958
      additional property: Liveness
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        value: 0.118
      additional property: Valence (Positivity)
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        value: 0.45
      additional property: Loudness (dB)
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        value: -8.406
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Peaceful Piano for Thanksgiving Dinner
  type: MusicAlbum
  date published: 2021-11-25