Fredrik Bjorlin
type: MusicGroup
genre: choral
genre: requiem
popularity: 5
followers: 6
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e7b738fc8413892de0d1131f7f267a737c48cc52a5cf9e326605b8d62c49765
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b3e8f0c-91bc-4ad1-bea3-f39c9e4b3b95.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b3e8f0c-91bc-4ad1-bea3-f39c9e4b3b95.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3b3e8f0c-91bc-4ad1-bea3-f39c9e4b3b95
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e7b738fc8413892de0d1131f7f267a737c48cc52a5cf9e326605b8d62c49765","name":"Fredrik Bjorlin","registered_at":"2026-06-16T10:12:22Z","symbol":"NIM1019608","token_address":"0xe5000c48cf919a833e24630c96b048967912d829","type":"artist","uuid":"3b3e8f0c-91bc-4ad1-bea3-f39c9e4b3b95"}
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 0x8e7b738fc8413892de0d1131f7f267a737c48cc52a5cf9e326605b8d62c49765. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b3e8f0c-91bc-4ad1-bea3-f39c9e4b3b95.json and https://artists.proofprofile.net/proofs/artist/3b3e8f0c-91bc-4ad1-bea3-f39c9e4b3b95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:43:23Z
  text: {"copyright_id":"0x8e7b738fc8413892de0d1131f7f267a737c48cc52a5cf9e326605b8d62c49765","name":"Fredrik Bjorlin","registered_at":"2026-06-16T10:12:22Z","symbol":"NIM1019608","token_address":"0xe5000c48cf919a833e24630c96b048967912d829","type":"artist","uuid":"3b3e8f0c-91bc-4ad1-bea3-f39c9e4b3b95"}