John Lithgow
type: MusicGroup
description: John Arthur Lithgow ( ; born , 1945) is an American actor. He studied at Harvard University and the London Academy of Music and Dramatic Art before becoming known for his diverse work on stage and s
popularity: 28
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x00411635a46a776cf5078ca3ffecb06c85a170993823d474ff863cd95af3d2df
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6f5df0c5-c5bf-43e7-8ba1-1ed66af0bdda.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6f5df0c5-c5bf-43e7-8ba1-1ed66af0bdda.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6f5df0c5-c5bf-43e7-8ba1-1ed66af0bdda
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x00411635a46a776cf5078ca3ffecb06c85a170993823d474ff863cd95af3d2df","name":"John Lithgow","registered_at":"2026-06-12T00:42:06Z","symbol":"NIM0145561","token_address":"0x258158cab6beb568f00ba3ca9d84c35772ba1afb","type":"artist","uuid":"6f5df0c5-c5bf-43e7-8ba1-1ed66af0bdda"}
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 0x00411635a46a776cf5078ca3ffecb06c85a170993823d474ff863cd95af3d2df. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6f5df0c5-c5bf-43e7-8ba1-1ed66af0bdda.json and https://artists.proofprofile.net/proofs/artist/6f5df0c5-c5bf-43e7-8ba1-1ed66af0bdda.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x00411635a46a776cf5078ca3ffecb06c85a170993823d474ff863cd95af3d2df","name":"John Lithgow","registered_at":"2026-06-12T00:42:06Z","symbol":"NIM0145561","token_address":"0x258158cab6beb568f00ba3ca9d84c35772ba1afb","type":"artist","uuid":"6f5df0c5-c5bf-43e7-8ba1-1ed66af0bdda"}