Tatjana Ruhland
type: MusicGroup
genre: chamber music
popularity: 15
followers: 254
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/953620
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/1f5a4e05-b402-4538-8a06-564b486e7411.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
  type: DigitalDocument
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a795c5a186983329d9e71b824152c57a3efe5024875cebaab99c3b5da47a1f0. Chain 2 (Bitcoin): anchored in block 953621 (2026-06-14T09:42:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f5a4e05-b402-4538-8a06-564b486e7411.json and https://artists.proofprofile.net/proofs/artist/1f5a4e05-b402-4538-8a06-564b486e7411.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T09:42:57Z
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album: Reinecke: Flute Concertos & Sonatas
  type: MusicAlbum
  date published: 2017-10-06
album: La flute à l’école de Paris
  type: MusicAlbum
  date published: 2023-08-18
album: Müller: Flute Concertos Nos. 5, 7 & 8
  type: MusicAlbum
  date published: 2020
album: Müller: Flute Concertos Nos. 1, 3 & 10
  type: MusicAlbum
  date published: 2019-01-18
album: Koechlin: Chamber Music
  type: MusicAlbum
  date published: 2017-10-13
album: Tatjana Ruhland Plays Bach and Penderecki
  type: MusicAlbum
  date published: 2016-09-02