Eric Nilsson
type: MusicGroup
genre: swedish ballads
description: Eric Nils Nilsson (26 December 1926 – 13 June 2024) was a Swedish middle-distance runner. He competed in the men's 3000 metres steeplechase at the 1952 Summer Olympics. He died on 13 June 2024, at the
popularity: 4
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3fbcc045a26398769fb98ca434ed578742a3739334d49b3214a08531616d825f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0111648-9ebc-4207-85e6-97877c3bb620.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0111648-9ebc-4207-85e6-97877c3bb620.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b0111648-9ebc-4207-85e6-97877c3bb620
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3fbcc045a26398769fb98ca434ed578742a3739334d49b3214a08531616d825f","name":"Eric Nilsson","registered_at":"2026-06-20T12:03:39Z","symbol":"NIM1607376","token_address":"0xd31d90a9beec5947f59aec39b8a66562bd013acc","type":"artist","uuid":"b0111648-9ebc-4207-85e6-97877c3bb620"}
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 0x3fbcc045a26398769fb98ca434ed578742a3739334d49b3214a08531616d825f. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b0111648-9ebc-4207-85e6-97877c3bb620.json and https://artists.proofprofile.net/proofs/artist/b0111648-9ebc-4207-85e6-97877c3bb620.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x3fbcc045a26398769fb98ca434ed578742a3739334d49b3214a08531616d825f","name":"Eric Nilsson","registered_at":"2026-06-20T12:03:39Z","symbol":"NIM1607376","token_address":"0xd31d90a9beec5947f59aec39b8a66562bd013acc","type":"artist","uuid":"b0111648-9ebc-4207-85e6-97877c3bb620"}