Lfgren
type: MusicGroup
popularity: 3
followers: 107
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd2c143a9c6cbd5c1b7789303d2767aefb96a35b44cb4e0b04f3a57e29350f09b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9988184-22ec-4b61-a2db-a4e0df5e02ed.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d9988184-22ec-4b61-a2db-a4e0df5e02ed.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d9988184-22ec-4b61-a2db-a4e0df5e02ed
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
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 0xd2c143a9c6cbd5c1b7789303d2767aefb96a35b44cb4e0b04f3a57e29350f09b. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d9988184-22ec-4b61-a2db-a4e0df5e02ed.json and https://artists.proofprofile.net/proofs/artist/d9988184-22ec-4b61-a2db-a4e0df5e02ed.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T04:51:12Z
album: ikk luk dem ind
  type: MusicAlbum
  date published: 2024-08-30
album: kommer omkring
  type: MusicAlbum
  date published: 2024-11-03
album: Livsstil
  type: MusicAlbum
  date published: 2025-01-17
album: Bånd
  type: MusicAlbum
  date published: 2025-03-07
album: Løb længder
  type: MusicAlbum
  date published: 2025-04-25
album: Langt fra rapper
  type: MusicAlbum
  date published: 2025-07-04
album: 100tusind
  type: MusicAlbum
  date published: 2025-08-01
album: Septembersindssyg
  type: MusicAlbum
  date published: 2025-09-12