Chris Opperman
type: MusicGroup
genre: chamber music
description: thumb|right|upright=1.15|Opperman in 2023 Chris Opperman (born November 20, 1978Westergaard, Sean [ Chris Opperman at AllMusic.com]) is a composer. Opperman is known mostly for his work orchestrating
popularity: 4
followers: 475
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additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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  value: https://blockstream.info/api/block-height/953954
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/255a0934-3acd-44d4-8a04-9ea5d98ef1e7.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 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
subject of: OpenTimestamps Proof of Existence
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cee846cc8413f932656fbf388893f29880bce6ece1aa6044e009dc1be05947. Chain 2 (Bitcoin): anchored in block 953954 (2026-06-16T14:18:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/255a0934-3acd-44d4-8a04-9ea5d98ef1e7.json and https://artists.proofprofile.net/proofs/artist/255a0934-3acd-44d4-8a04-9ea5d98ef1e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:18:37Z
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album: Oppy Music, Vol. I: Purple, Crayon.
  type: MusicAlbum
  date published: 1998-01-01
album: Klavierstücke
  type: MusicAlbum
  date published: 2001-01-01
album: Concepts of Non-linear Time
  type: MusicAlbum
  date published: 2004-01-01
album: Beyond the Foggy Highway
  type: MusicAlbum
  date published: 2005-01-01
album: The Lionheart
  type: MusicAlbum
  date published: 2010-10-26
album: Aphrodite Nights (feat. Ryan McCausland)
  type: MusicAlbum
  date published: 2011-09-20
album: Studio House
  type: MusicAlbum
  date published: 2012-03-20
album: And If You Know
  type: MusicAlbum
  date published: 2020-06-06
album: Chamber Music from Hell
  type: MusicAlbum
  date published: 2020-07-31
album: Four Improvisations
  type: MusicAlbum
  date published: 2022-02-04
album: Are We Living in a Computer Simulation? (Standard Edition)
  type: MusicAlbum
  date published: 2022-06-03
album: Still Waters
  type: MusicAlbum
  date published: 2023-11-03