Stéphan Elmas
type: MusicGroup
description: thumb|The young Stéphan Elmas in Vienna in February 1887 (portrait by Ignaz Eigner) thumb|Tomb of Stéphan Elmas, Kings Cemetery, Geneva. Stéphan Elmas (; 1862 – August 11, 1937) was an Armenian compos
popularity: 4
followers: 76
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/70ff5d1b-202d-40af-b244-a8fae94d00d4.ots
additional property: OTSRecordURL
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additional property: OTSVerificationAPI
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  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/70ff5d1b-202d-40af-b244-a8fae94d00d4
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
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b9f753692a1899bdd3cf82c6be5482f20dec1ba7ba3ca2fc329298db1575711. 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/70ff5d1b-202d-40af-b244-a8fae94d00d4.json and https://artists.proofprofile.net/proofs/artist/70ff5d1b-202d-40af-b244-a8fae94d00d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: The Soul of Smyrna
  type: MusicAlbum
  date published: 2023-04-21
album: Elmas: Complete Piano Works, Vol. 2
  type: MusicAlbum
  date published: 2023-02-10
album: Elmas: Complete Piano Works, Vol. 1
  type: MusicAlbum
  date published: 2022-10-14
album: Elmas: Piano Concertos (Hyperion Romantic Piano Concerto 82)
  type: MusicAlbum
  date published: 2021-01-08
album: The Essential Mikael Ayrapetyan
  type: MusicAlbum
  date published: 2024-03-01
album: Sleep
  type: MusicAlbum
  date published: 2024-08-23
album: An Anthology of Armenian Piano Music, Vol. 1 - Classic Composers
  type: MusicAlbum
  date published: 1979