Kröwnn
type: MusicGroup
genre: doom metal
genre: drone
genre: sludge metal
genre: stoner rock
popularity: 3
followers: 540
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9cae94d4e9c63832a4169a0903b3114422684a3b789145bbc6e69b0e8166b2f9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36602713-fb0d-44ce-a34b-4a71e63ed04a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/36602713-fb0d-44ce-a34b-4a71e63ed04a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/36602713-fb0d-44ce-a34b-4a71e63ed04a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9cae94d4e9c63832a4169a0903b3114422684a3b789145bbc6e69b0e8166b2f9","name":"Kröwnn","registered_at":"2026-06-16T08:29:03Z","symbol":"NIM0994953","token_address":"0x47c7e7113b801fd4a30e73856939349b54f1599a","type":"artist","uuid":"36602713-fb0d-44ce-a34b-4a71e63ed04a"}
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 0x9cae94d4e9c63832a4169a0903b3114422684a3b789145bbc6e69b0e8166b2f9. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36602713-fb0d-44ce-a34b-4a71e63ed04a.json and https://artists.proofprofile.net/proofs/artist/36602713-fb0d-44ce-a34b-4a71e63ed04a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0x9cae94d4e9c63832a4169a0903b3114422684a3b789145bbc6e69b0e8166b2f9","name":"Kröwnn","registered_at":"2026-06-16T08:29:03Z","symbol":"NIM0994953","token_address":"0x47c7e7113b801fd4a30e73856939349b54f1599a","type":"artist","uuid":"36602713-fb0d-44ce-a34b-4a71e63ed04a"}
album: Blüedeep
  type: MusicAlbum
  date published: 2019-12-23
album: Hyborian Age
  type: MusicAlbum
  date published: 2020-02-15
album: Magmafröst
  type: MusicAlbum
  date published: 2020-02-15
album: Twin Blades
  type: MusicAlbum
  date published: 2020-07-15