Jórunn Viðar
type: MusicGroup
description: Jórunn Viðar (7 December 1918 – 27 February 2017) was an Icelandic pianist and composer. She was the first classically trained female composer in Iceland and her music is frequently inspired by Icelan
popularity: 4
followers: 206
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcea28c8c4285de38af0c42817ee55f4793b708b64a91cd1a10c9dcc014017870
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/60b07a09-73e5-49d4-9aa8-0631c3594da2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/60b07a09-73e5-49d4-9aa8-0631c3594da2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/60b07a09-73e5-49d4-9aa8-0631c3594da2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcea28c8c4285de38af0c42817ee55f4793b708b64a91cd1a10c9dcc014017870","name":"Jórunn Viðar","registered_at":"2026-06-16T23:19:42Z","symbol":"NIM1207449","token_address":"0x76c3521796de69d189ac8a6cfcddae792c46e5f9","type":"artist","uuid":"60b07a09-73e5-49d4-9aa8-0631c3594da2"}
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
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcea28c8c4285de38af0c42817ee55f4793b708b64a91cd1a10c9dcc014017870. 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/60b07a09-73e5-49d4-9aa8-0631c3594da2.json and https://artists.proofprofile.net/proofs/artist/60b07a09-73e5-49d4-9aa8-0631c3594da2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xcea28c8c4285de38af0c42817ee55f4793b708b64a91cd1a10c9dcc014017870","name":"Jórunn Viðar","registered_at":"2026-06-16T23:19:42Z","symbol":"NIM1207449","token_address":"0x76c3521796de69d189ac8a6cfcddae792c46e5f9","type":"artist","uuid":"60b07a09-73e5-49d4-9aa8-0631c3594da2"}
album: Únglingurinn í skóginum - Jórunn Viðar
  type: MusicAlbum
  date published: 1989-01-01
album: Slátta - Jórunn Viðar
  type: MusicAlbum
  date published: 2000-01-01
album: Slátta - Jórunn Viðar
  type: MusicAlbum
  date published: 2000-01-01
album: Mansöngur - Jórunn Viðar
  type: MusicAlbum
  date published: 2002-01-01
album: Únglingurinn í skóginum - Jórunn Viðar
  type: MusicAlbum
  date published: 2014-09-11
album: Únglingurinn í skóginum - Jórunn Viðar
  type: MusicAlbum
  date published: 2016-05-18
album: Jórunn Viðar - Söngvar
  type: MusicAlbum
  date published: 2018-12-21
album: Jórunn Viðar - Söngvar
  type: MusicAlbum
  date published: 2018-12-21
album: Viðar: Ólafur Liljurós: Crotchet = c. 144
  type: MusicAlbum
  date published: 2023-02-24