Arturs Maskats
type: MusicGroup
genre: choral
description: Arturs Maskats (born 20 December 1957 in Valmiera) is a Latvian composer- - and since 1996 artistic director of the Latvian National Opera. His orchestral composition, Tango, received international e
popularity: 3
followers: 172
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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
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album: Kõrvits: Kreek's Notebook
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
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  track: Kreek's Notebook: II. Nüüd on See päev ju lõppenud –
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    subject of: OpenTimestamps Proof of Existence
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      date published: 2026-07-08T03:22:41Z
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  track: Kreek's Notebook: V. Su hooleks ennast annan ma
track: Janu dziesma
track: Rīgai - Live
track: Tango

Janu dziesma
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duration: PT4M32S
duration ms: 272493
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by artist: Arturs Maskats
by artist: Rihards Zalupe
by artist: Kamēr Choir
by artist: Māris Sirmais
in album: Dawn Is Breaking: Choral Music from Latvia
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  date published: 2008-01-01
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T03:22:41Z
audio: Janu dziesma
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Rīgai - Live
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duration: PT3M55S
duration ms: 235380
explicit: false
by artist: Arturs Maskats
by artist: Youth choir BALSIS
by artist: Ints Teterovskis
by artist: Valdis Tomsons
in album: Svētki! (Live)
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popularity: 4
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T02:19:15Z
audio: Rīgai - Live
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Tango
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by artist: Arturs Maskats
by artist: Andris Nelsons
by artist: Wiener Philharmoniker
in album: Sommernachtskonzert 2022 / Summer Night Concert 2022
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popularity: 3
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-31T00:26:26Z
audio: Tango
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additional property: OTSVerifyInstructions
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Instrumentalness
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Liveness
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Valence (Positivity)
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Loudness (dB)
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Key Name
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Mode Name
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Kreek's Notebook: V. Su hooleks ennast annan ma
type: MusicRecording
duration: PT3M20S
duration ms: 200360
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by artist: Britten Sinfonia
by artist: Gillian Franklin
by artist: The Choir of Royal Holloway
by artist: Rupert Gough
in album: Kõrvits: Kreek's Notebook
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  date published: 2013-06-30
popularity: 1
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subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858e82526b5c293a1edd9cf040144204035fe2651262387c7ced1528050e7705. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/GBAJY1396805.
  date published: 2026-07-08T08:56:20Z
audio: Kreek's Notebook: V. Su hooleks ennast annan ma
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