Karl Kohaut
type: MusicGroup
description: Karl Ignaz Augustin Kohaut (baptised August 26, 1726 – August 6, 1784) was an Austrian diplomat, lutenist and composer of Czech descent. He is considered (along with Bernhard Joachim Hagen) to be one
popularity: 17
followers: 207
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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
subject of: OpenTimestamps Proof of Existence
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album: Kohaut: Lute Concertos
  type: MusicAlbum
  date published: 2005-01-01
album: Karl Kohaut (1726-1784): Lute Concertos
  type: MusicAlbum
  date published: 2005-01-01
album: Kohaut: Lute Concertos
  type: MusicAlbum
  date published: 2005-01-01
album: Karl Kohaut - Haydn's Lute Player
  type: MusicAlbum
  date published: 2009-10-30
album: Kohaut: Concerto for Lute in F Major: II. Adagio
  type: MusicAlbum
  date published: 2025-02-14
  track: Concerto for Lute in F Major: II. Adagio
track: Sonata a liuto solo in D Major: I. Adagio
track: Sonata a liuto solo in D Major: II. Allegro
track: Sonata a liuto solo in D Major: III. Menuet & Trio

Concerto for Lute in F Major: II. Adagio
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by artist: Karl Kohaut
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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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  date published: 2026-07-02T03:30:09Z
audio: Concerto for Lute in F Major: II. Adagio
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Sonata a liuto solo in D Major: I. Adagio
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duration: PT3M38S
duration ms: 218000
explicit: false
by artist: Karl Kohaut
by artist: Bernhard Hofstötter
in album: The Baroque Lute in Vienna
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  date published: 2015-06-05
popularity: 3
isrc code: NLY331502276
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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
additional property: ProofProfileEvidenceStatus
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subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-08T08:56:20Z
audio: Sonata a liuto solo in D Major: I. Adagio
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Sonata a liuto solo in D Major: II. Allegro
type: MusicRecording
duration: PT5M15S
duration ms: 315000
explicit: false
by artist: Karl Kohaut
by artist: Bernhard Hofstötter
in album: The Baroque Lute in Vienna
  type: MusicAlbum
  date published: 2015-06-05
popularity: 3
subject of: OpenTimestamps Proof of Existence
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  date published: 2026-07-30T14:44:50Z
audio: Sonata a liuto solo in D Major: II. Allegro
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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 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

Sonata a liuto solo in D Major: III. Menuet & Trio
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duration: PT4M48S
duration ms: 288000
explicit: false
by artist: Karl Kohaut
by artist: Bernhard Hofstötter
in album: The Baroque Lute in Vienna
  type: MusicAlbum
  date published: 2015-06-05
popularity: 3
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7224f54b90e0353c1bcb554319b286bb6fb2d1c558646117f463c299e0847de4. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/NLY331502278.
  date published: 2026-07-30T21:35:24Z
audio: Sonata a liuto solo in D Major: III. Menuet & Trio
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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 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