Stamic Quartet
type: MusicGroup
genre: chamber music
description: The Stamic Quartet (Czech: Stamicovo kvarteto) is a Czech string quartet. The ensemble is named after the composer Jan Václav Antonín Stamic, because both violinists of the original line-up were born
popularity: 11
followers: 244
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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  value: 2026-06-14T08:58:35Z
additional property: OTSCanonicalRecord
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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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f501706bf529b27d7e7a2031b7eb1fac52cbb9ae8a090b7bb6e9f910e543048. Chain 2 (Bitcoin): anchored in block 953617 (2026-06-14T09:00:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a83708d-2119-4cbb-a99f-fc863e4b3a01.json and https://artists.proofprofile.net/proofs/artist/1a83708d-2119-4cbb-a99f-fc863e4b3a01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:00:45Z
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album: Faraway on a Moonlit Night
  type: MusicAlbum
  date published: 2009-04-07
album: Suburban Path
  type: MusicAlbum
  date published: 2009-04-07