Björn Englen
type: MusicGroup
popularity: 4
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf9a8c8203aed039b9cd81723c63fc87c1e1c721c74fd420d76e2e5dfa2e2706c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1ee0661-ec6a-4f5b-abea-9bdd3badf673.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1ee0661-ec6a-4f5b-abea-9bdd3badf673.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b1ee0661-ec6a-4f5b-abea-9bdd3badf673
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf9a8c8203aed039b9cd81723c63fc87c1e1c721c74fd420d76e2e5dfa2e2706c","name":"Björn Englen","registered_at":"2026-06-20T13:00:20Z","symbol":"NIM1616538","token_address":"0x53b6d8ab1a0bd9d81dfba13967b0ae1520df888a","type":"artist","uuid":"b1ee0661-ec6a-4f5b-abea-9bdd3badf673"}
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 0xf9a8c8203aed039b9cd81723c63fc87c1e1c721c74fd420d76e2e5dfa2e2706c. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1ee0661-ec6a-4f5b-abea-9bdd3badf673.json and https://artists.proofprofile.net/proofs/artist/b1ee0661-ec6a-4f5b-abea-9bdd3badf673.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xf9a8c8203aed039b9cd81723c63fc87c1e1c721c74fd420d76e2e5dfa2e2706c","name":"Björn Englen","registered_at":"2026-06-20T13:00:20Z","symbol":"NIM1616538","token_address":"0x53b6d8ab1a0bd9d81dfba13967b0ae1520df888a","type":"artist","uuid":"b1ee0661-ec6a-4f5b-abea-9bdd3badf673"}