Casper Bjerke
type: MusicGroup
popularity: 41
followers: 225
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe86f1c5f113b896412377cdba8928d74ddc7964385034c09990ea0fb1380df2b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1044c52b-1cc6-48c8-a27e-5776c42ce44f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1044c52b-1cc6-48c8-a27e-5776c42ce44f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1044c52b-1cc6-48c8-a27e-5776c42ce44f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe86f1c5f113b896412377cdba8928d74ddc7964385034c09990ea0fb1380df2b","name":"Casper Bjerke","registered_at":"2026-06-11T12:01:09Z","symbol":"NIM0021832","token_address":"0xe1593469bda1bd9fd46e3b6164bd2dfccf2c2cca","type":"artist","uuid":"1044c52b-1cc6-48c8-a27e-5776c42ce44f"}
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 0xe86f1c5f113b896412377cdba8928d74ddc7964385034c09990ea0fb1380df2b. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1044c52b-1cc6-48c8-a27e-5776c42ce44f.json and https://artists.proofprofile.net/proofs/artist/1044c52b-1cc6-48c8-a27e-5776c42ce44f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0xe86f1c5f113b896412377cdba8928d74ddc7964385034c09990ea0fb1380df2b","name":"Casper Bjerke","registered_at":"2026-06-11T12:01:09Z","symbol":"NIM0021832","token_address":"0xe1593469bda1bd9fd46e3b6164bd2dfccf2c2cca","type":"artist","uuid":"1044c52b-1cc6-48c8-a27e-5776c42ce44f"}
album: Krokfjell
  type: MusicAlbum
  date published: 2021-12-09
album: Nordfjord
  type: MusicAlbum
  date published: 2022-03-28
album: Elverum
  type: MusicAlbum
  date published: 2022-03-28
album: Drommenes Verden
  type: MusicAlbum
  date published: 2022-10-15
album: Lethas
  type: MusicAlbum
  date published: 2023-03-31