Karlberg
type: MusicGroup
genre: chillwave
genre: space music
genre: synthwave
genre: vaporwave
popularity: 4
followers: 254
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02a1b3a78d9a680b4acade9c65a1bac4489facab5091ee6eaa7698e57f5bf147
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/5ba0c837-0d64-4a2a-9509-19b47d3cb88a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5ba0c837-0d64-4a2a-9509-19b47d3cb88a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5ba0c837-0d64-4a2a-9509-19b47d3cb88a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02a1b3a78d9a680b4acade9c65a1bac4489facab5091ee6eaa7698e57f5bf147. 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/5ba0c837-0d64-4a2a-9509-19b47d3cb88a.json and https://artists.proofprofile.net/proofs/artist/5ba0c837-0d64-4a2a-9509-19b47d3cb88a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
album: Arkad
  type: MusicAlbum
  date published: 2021-08-05
album: Test Drive
  type: MusicAlbum
  date published: 2021-08-09
album: Dream Waves
  type: MusicAlbum
  date published: 2021-11-21
album: New Life
  type: MusicAlbum
  date published: 2022-01-04
album: Progress
  type: MusicAlbum
  date published: 2022-06-25
album: Outer Space
  type: MusicAlbum
  date published: 2022-11-01
album: .COM
  type: MusicAlbum
  date published: 2023-10-21
album: S.O.A.R
  type: MusicAlbum
  date published: 2024-01-05
album: Pioneer
  type: MusicAlbum
  date published: 2024-08-24
album: Space Station Radio
  type: MusicAlbum
  date published: 2025-03-14