John Lennon
type: MusicGroup
description: John Winston Ono Lennon (born John Winston Lennon; 9 October 19408 December 1980) was an English musician and activist. He gained global fame as the founder, co-lead vocalist and rhythm guitarist of t
popularity: 3
followers: 10
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf7b4cabc99c8b80e4069a5ba7f52640a5dbfdc948dfe2b66234ca78bf630b445
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954032
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954032
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bed5d2f-c037-4c54-866b-fb9d84fe7e03.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3bed5d2f-c037-4c54-866b-fb9d84fe7e03.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3bed5d2f-c037-4c54-866b-fb9d84fe7e03
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:59:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf7b4cabc99c8b80e4069a5ba7f52640a5dbfdc948dfe2b66234ca78bf630b445","name":"John Lennon","registered_at":"2026-06-16T10:26:46Z","symbol":"NIM1023046","token_address":"0xbc3b2e81fee5a7be82b63db5ac88ffb18e730e4a","type":"artist","uuid":"3bed5d2f-c037-4c54-866b-fb9d84fe7e03"}
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 0xf7b4cabc99c8b80e4069a5ba7f52640a5dbfdc948dfe2b66234ca78bf630b445. Chain 2 (Bitcoin): anchored in block 954032 (2026-06-17T01:59:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3bed5d2f-c037-4c54-866b-fb9d84fe7e03.json and https://artists.proofprofile.net/proofs/artist/3bed5d2f-c037-4c54-866b-fb9d84fe7e03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:59:41Z
  text: {"copyright_id":"0xf7b4cabc99c8b80e4069a5ba7f52640a5dbfdc948dfe2b66234ca78bf630b445","name":"John Lennon","registered_at":"2026-06-16T10:26:46Z","symbol":"NIM1023046","token_address":"0xbc3b2e81fee5a7be82b63db5ac88ffb18e730e4a","type":"artist","uuid":"3bed5d2f-c037-4c54-866b-fb9d84fe7e03"}
album: The Beatles Tribute
  type: MusicAlbum
  date published: 2021-05-26