Simon Sandgren
type: MusicGroup
popularity: 7
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x110b349b46d1dda7519d8b70d55796f410327d4afd7a4e34ad6815862b9eda2e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954705
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954705
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eea28fa3-3478-4170-ba19-f00db367d94f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eea28fa3-3478-4170-ba19-f00db367d94f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eea28fa3-3478-4170-ba19-f00db367d94f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T13:42:37Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x110b349b46d1dda7519d8b70d55796f410327d4afd7a4e34ad6815862b9eda2e","name":"Simon Sandgren","registered_at":"2026-06-21T12:09:56Z","symbol":"NIM1919734","token_address":"0xd177f6e33a6e3f6c988a835f2475bb11d3fb616f","type":"artist","uuid":"eea28fa3-3478-4170-ba19-f00db367d94f"}
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 0x110b349b46d1dda7519d8b70d55796f410327d4afd7a4e34ad6815862b9eda2e. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eea28fa3-3478-4170-ba19-f00db367d94f.json and https://artists.proofprofile.net/proofs/artist/eea28fa3-3478-4170-ba19-f00db367d94f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
  text: {"copyright_id":"0x110b349b46d1dda7519d8b70d55796f410327d4afd7a4e34ad6815862b9eda2e","name":"Simon Sandgren","registered_at":"2026-06-21T12:09:56Z","symbol":"NIM1919734","token_address":"0xd177f6e33a6e3f6c988a835f2475bb11d3fb616f","type":"artist","uuid":"eea28fa3-3478-4170-ba19-f00db367d94f"}