Jonathan Sandberg
type: MusicGroup
popularity: 20
followers: 14
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb167a4f874f203fc50b598376108340d2847044d73f8150fd7592165aa30991d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953759
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953759
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b87929aa-8759-49df-9375-2af65f2fe99c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b87929aa-8759-49df-9375-2af65f2fe99c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b87929aa-8759-49df-9375-2af65f2fe99c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T08:04:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb167a4f874f203fc50b598376108340d2847044d73f8150fd7592165aa30991d","name":"Jonathan Sandberg","registered_at":"2026-06-14T23:48:53Z","symbol":"NIM0615317","token_address":"0xbca0631aa07770d25ed2a05764ccc15db913129d","type":"artist","uuid":"b87929aa-8759-49df-9375-2af65f2fe99c"}
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 0xb167a4f874f203fc50b598376108340d2847044d73f8150fd7592165aa30991d. Chain 2 (Bitcoin): anchored in block 953759 (2026-06-15T08:04:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b87929aa-8759-49df-9375-2af65f2fe99c.json and https://artists.proofprofile.net/proofs/artist/b87929aa-8759-49df-9375-2af65f2fe99c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T08:04:42Z
  text: {"copyright_id":"0xb167a4f874f203fc50b598376108340d2847044d73f8150fd7592165aa30991d","name":"Jonathan Sandberg","registered_at":"2026-06-14T23:48:53Z","symbol":"NIM0615317","token_address":"0xbca0631aa07770d25ed2a05764ccc15db913129d","type":"artist","uuid":"b87929aa-8759-49df-9375-2af65f2fe99c"}