Elkjøp
type: MusicGroup
description: thumb|Elkjøp Megastore, Kristiansand (July 2009) Elkjøp, better known as Elgiganten outside Norway, is the largest consumer electronics retailer in the Nordic countries with four hundred stores in si
popularity: 7
followers: 43
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf5ffa9e3e3a8d0f74088b0b83033d06238b36308cedd6782fa4291c6b0b3795c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c747f2f0-6504-49bd-ad42-cd49c0100a76.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c747f2f0-6504-49bd-ad42-cd49c0100a76.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c747f2f0-6504-49bd-ad42-cd49c0100a76
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf5ffa9e3e3a8d0f74088b0b83033d06238b36308cedd6782fa4291c6b0b3795c","name":"Elkjøp","registered_at":"2026-06-20T21:55:45Z","symbol":"NIM1725351","token_address":"0x5f0aedb283d023b40b180a8d6cfd520ea45563fe","type":"artist","uuid":"c747f2f0-6504-49bd-ad42-cd49c0100a76"}
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 0xf5ffa9e3e3a8d0f74088b0b83033d06238b36308cedd6782fa4291c6b0b3795c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c747f2f0-6504-49bd-ad42-cd49c0100a76.json and https://artists.proofprofile.net/proofs/artist/c747f2f0-6504-49bd-ad42-cd49c0100a76.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf5ffa9e3e3a8d0f74088b0b83033d06238b36308cedd6782fa4291c6b0b3795c","name":"Elkjøp","registered_at":"2026-06-20T21:55:45Z","symbol":"NIM1725351","token_address":"0x5f0aedb283d023b40b180a8d6cfd520ea45563fe","type":"artist","uuid":"c747f2f0-6504-49bd-ad42-cd49c0100a76"}