Karen Haugom Olsen
type: MusicGroup
genre: choral
popularity: 2
followers: 113
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x35e78f32d56ad0ca51ccaa920ea7fb05f57cdec676b6c26dcac80d799ac6c8ca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953954
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953954
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/250df0af-c51f-47ba-912d-a9755aa4ed56.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/250df0af-c51f-47ba-912d-a9755aa4ed56.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/250df0af-c51f-47ba-912d-a9755aa4ed56
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:18:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x35e78f32d56ad0ca51ccaa920ea7fb05f57cdec676b6c26dcac80d799ac6c8ca","name":"Karen Haugom Olsen","registered_at":"2026-06-16T02:30:54Z","symbol":"NIM0909415","token_address":"0x18e59cb0630b53816640627adf69285d4a0eb5ec","type":"artist","uuid":"250df0af-c51f-47ba-912d-a9755aa4ed56"}
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 0x35e78f32d56ad0ca51ccaa920ea7fb05f57cdec676b6c26dcac80d799ac6c8ca. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/250df0af-c51f-47ba-912d-a9755aa4ed56.json and https://artists.proofprofile.net/proofs/artist/250df0af-c51f-47ba-912d-a9755aa4ed56.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x35e78f32d56ad0ca51ccaa920ea7fb05f57cdec676b6c26dcac80d799ac6c8ca","name":"Karen Haugom Olsen","registered_at":"2026-06-16T02:30:54Z","symbol":"NIM0909415","token_address":"0x18e59cb0630b53816640627adf69285d4a0eb5ec","type":"artist","uuid":"250df0af-c51f-47ba-912d-a9755aa4ed56"}