Dan Buckley
type: MusicGroup
genre: musicals
description: thumb|right|Buckley at the 2007 New York Comic Con Dan Buckley is an American publishing executive, who is known for his work as Publisher, and then as President of Marvel Entertainment from January 2
popularity: 7
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x02cf3a04483d1beb4f0905f505c43c7eee65b416b06c9ad5e01e894085ae91b9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954587
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954587
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9be78e1-9b59-4d3b-9e0d-cea251eca2e3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9be78e1-9b59-4d3b-9e0d-cea251eca2e3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9be78e1-9b59-4d3b-9e0d-cea251eca2e3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T19:10:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x02cf3a04483d1beb4f0905f505c43c7eee65b416b06c9ad5e01e894085ae91b9","name":"Dan Buckley","registered_at":"2026-06-20T16:21:11Z","symbol":"NIM1653299","token_address":"0x20d92a2c6bafd18ca5efe24d1dca26fa1ebfb242","type":"artist","uuid":"b9be78e1-9b59-4d3b-9e0d-cea251eca2e3"}
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 0x02cf3a04483d1beb4f0905f505c43c7eee65b416b06c9ad5e01e894085ae91b9. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b9be78e1-9b59-4d3b-9e0d-cea251eca2e3.json and https://artists.proofprofile.net/proofs/artist/b9be78e1-9b59-4d3b-9e0d-cea251eca2e3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T19:10:41Z
  text: {"copyright_id":"0x02cf3a04483d1beb4f0905f505c43c7eee65b416b06c9ad5e01e894085ae91b9","name":"Dan Buckley","registered_at":"2026-06-20T16:21:11Z","symbol":"NIM1653299","token_address":"0x20d92a2c6bafd18ca5efe24d1dca26fa1ebfb242","type":"artist","uuid":"b9be78e1-9b59-4d3b-9e0d-cea251eca2e3"}