Riccardo Drigo
type: MusicGroup
description: thumb|Maestro Riccardo Eugenio Drigo. Saint Petersburg, 1892 Riccardo Drigo (; 30 June 1846 – 1 October 1930) was an Italian composer of ballet music and Italian opera, a theatrical conductor, and a
popularity: 13
followers: 20
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x197707fe9d7b9b9693e80c86f6fd4600cfc3122cd5f48d58fbe457821a9d9ac2. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f071058b-edd1-4175-a51e-254549dc6707.json and https://artists.proofprofile.net/proofs/artist/f071058b-edd1-4175-a51e-254549dc6707.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T19:59:56Z
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track: Pirouette Waltz (from Esméralda)
track: Tempo di Sissone (from Harlequinade)

Pirouette Waltz (from Esméralda)
type: MusicRecording
duration: PT2M56S
duration ms: 176982
explicit: false
by artist: Douglas Schultz
by artist: Riccardo Drigo
in album: Ballet Class Music from New York City: Music from Company Class, Vol. 2
  type: MusicAlbum
  date published: 2002-08-05
isrc code: USE831579479
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additional property: OTSTimestamp
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additional property: OTSVerifyInstructions
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  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
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37c3705777bfab802b45549c384f06de6a84e73b921f2dda3a8b9b9e91e90fbd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USE831579479.
  date published: 2026-06-13T17:25:41Z
audio: Pirouette Waltz (from Esméralda)
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  additional property: Danceability
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  additional property: Energy
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  additional property: Speechiness
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  additional property: Acousticness
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  additional property: Instrumentalness
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  additional property: Liveness
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  additional property: Valence (Positivity)
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  additional property: Loudness (dB)
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    value: -23.358
  additional property: Key Name
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    value: D
  additional property: Mode Name
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    value: Major

Tempo di Sissone (from Harlequinade)
type: MusicRecording
duration: PT1M15S
duration ms: 75836
explicit: false
by artist: Douglas Schultz
by artist: Riccardo Drigo
in album: Ballet Class Music from New York City: Music from Company Class, Vol. 2
  type: MusicAlbum
  date published: 2002-08-05
isrc code: USE831579477
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additional property: OTSVerifyInstructions
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-22T15:05:12Z
audio: Tempo di Sissone (from Harlequinade)
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  additional property: Danceability
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    value: 0.226
  additional property: Speechiness
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  additional property: Acousticness
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