Grettir Björnsson
type: MusicGroup
popularity: 4
followers: 189
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2146a5d0817e0384854b7995093d2dddbec8aa1690142d7988517e2de4936ca5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54716633-e0d8-43f7-a450-be69a18b43e5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/54716633-e0d8-43f7-a450-be69a18b43e5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/54716633-e0d8-43f7-a450-be69a18b43e5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2146a5d0817e0384854b7995093d2dddbec8aa1690142d7988517e2de4936ca5","name":"Grettir Björnsson","registered_at":"2026-06-16T18:56:35Z","symbol":"NIM1144669","token_address":"0x2f7acdc08ef2567a82fde5cb1b6aa590c283b07b","type":"artist","uuid":"54716633-e0d8-43f7-a450-be69a18b43e5"}
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 0x2146a5d0817e0384854b7995093d2dddbec8aa1690142d7988517e2de4936ca5. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/54716633-e0d8-43f7-a450-be69a18b43e5.json and https://artists.proofprofile.net/proofs/artist/54716633-e0d8-43f7-a450-be69a18b43e5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x2146a5d0817e0384854b7995093d2dddbec8aa1690142d7988517e2de4936ca5","name":"Grettir Björnsson","registered_at":"2026-06-16T18:56:35Z","symbol":"NIM1144669","token_address":"0x2f7acdc08ef2567a82fde5cb1b6aa590c283b07b","type":"artist","uuid":"54716633-e0d8-43f7-a450-be69a18b43e5"}
album: Grettir Björnsson
  type: MusicAlbum
  date published: 1972
album: Grettir Björnsson
  type: MusicAlbum
  date published: 1972-01-01
album: Grettir Björnsson
  type: MusicAlbum
  date published: 1976-01-01
album: Vor við sæinn
  type: MusicAlbum
  date published: 1994-01-01
album: Vor við sæinn
  type: MusicAlbum
  date published: 1994-01-01