Lars Ericsson
type: MusicGroup
description: Lars Ericsson also spelt Ericson (born 16 April 1956) is a Swedish former motorcycle speedway rider. Career Born in Torsby, Ericsson rode in the Swedish Third Division in 1976 for Solkatterna, movi
popularity: 2
followers: 15
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf1a858ba782e196b07dbf7bfbe180eb79313d7732baba16cca23d7e7eee719bf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad034170-d7bd-488f-b8af-60a4ef656009.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad034170-d7bd-488f-b8af-60a4ef656009.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad034170-d7bd-488f-b8af-60a4ef656009
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf1a858ba782e196b07dbf7bfbe180eb79313d7732baba16cca23d7e7eee719bf","name":"Lars Ericsson","registered_at":"2026-06-20T10:34:13Z","symbol":"NIM1592323","token_address":"0xc2379df1d3066fe02d45c145760aef286413ce9e","type":"artist","uuid":"ad034170-d7bd-488f-b8af-60a4ef656009"}
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 0xf1a858ba782e196b07dbf7bfbe180eb79313d7732baba16cca23d7e7eee719bf. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad034170-d7bd-488f-b8af-60a4ef656009.json and https://artists.proofprofile.net/proofs/artist/ad034170-d7bd-488f-b8af-60a4ef656009.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:10:20Z
  text: {"copyright_id":"0xf1a858ba782e196b07dbf7bfbe180eb79313d7732baba16cca23d7e7eee719bf","name":"Lars Ericsson","registered_at":"2026-06-20T10:34:13Z","symbol":"NIM1592323","token_address":"0xc2379df1d3066fe02d45c145760aef286413ce9e","type":"artist","uuid":"ad034170-d7bd-488f-b8af-60a4ef656009"}