Seymour Lipkin
type: MusicGroup
genre: chamber music
description: Seymour Lipkin (May 14, 1927 – November 16, 2015) was an American concert pianist, conductor, and educator. Early life and piano career Lipkin was born in Detroit. At age 11, he entered the Curtis In
popularity: 2
followers: 135
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlockVerifyURL
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6535bad71de0aecb9d2747c18175d297d53fffae1462f3d0179793627fa4aef3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/623b442b-9b18-4313-8205-dda8326ab0d3.json and https://artists.proofprofile.net/proofs/artist/623b442b-9b18-4313-8205-dda8326ab0d3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: Weber: 6 Violin Sonatas
  type: MusicAlbum
  date published: 2022-01-07
album: Strauss: Don Quixote, Op. 35 - Stravinsky: Concerto for Piano and Wind Instruments
  type: MusicAlbum
  date published: 2018-10-26
album: Beethoven Complete Piano Sonatas Volume One: Sonatas 1-10
  type: MusicAlbum
  date published: 2004-01-01
album: Dohnányi & Weiner: Violin Sonatas
  type: MusicAlbum
  date published: 1994-02-27
album: Grieg: The 3 Violin Sonatas
  type: MusicAlbum
  date published: 1993-11-15
album: Diamond: The World of Paul Klee (Recorded 1960)
  type: MusicAlbum
  date published: 1999