Jesper Jansson
type: MusicGroup
description: Jesper Urban Jansson (born 8 January 1971) is a Swedish former professional footballer who played as a defender or midfielder. He is the head of football of Allsvenskan club IFK Göteborg since April 2
popularity: 10
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3d56965b695f6c761efaaaa1ba0722809feafe04795a024a46963e08c6ab267b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/099be9c3-d666-4255-93a1-5229bd06aacc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/099be9c3-d666-4255-93a1-5229bd06aacc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/099be9c3-d666-4255-93a1-5229bd06aacc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3d56965b695f6c761efaaaa1ba0722809feafe04795a024a46963e08c6ab267b","name":"Jesper Jansson","registered_at":"2026-06-15T16:46:01Z","symbol":"NIM0769832","token_address":"0x1f6f3a7a3deffc5c7b8dc3ec2cf8caeae6edffa9","type":"artist","uuid":"099be9c3-d666-4255-93a1-5229bd06aacc"}
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 0x3d56965b695f6c761efaaaa1ba0722809feafe04795a024a46963e08c6ab267b. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/099be9c3-d666-4255-93a1-5229bd06aacc.json and https://artists.proofprofile.net/proofs/artist/099be9c3-d666-4255-93a1-5229bd06aacc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x3d56965b695f6c761efaaaa1ba0722809feafe04795a024a46963e08c6ab267b","name":"Jesper Jansson","registered_at":"2026-06-15T16:46:01Z","symbol":"NIM0769832","token_address":"0x1f6f3a7a3deffc5c7b8dc3ec2cf8caeae6edffa9","type":"artist","uuid":"099be9c3-d666-4255-93a1-5229bd06aacc"}