Dan Washburn
type: MusicGroup
description: Daniel Christopher Washburn (born October 31, 1973, Danville, Pennsylvania) is an American writer and journalist. He is the author of The Forbidden Game: Golf and the Chinese Dream, named one of the b
popularity: 4
followers: 84
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0066efb2820db33cd8e103db5078aa4f6bd7d9041847c6a05d9be34c258d854
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce735a64-3199-4d7d-8cb7-77434b03282c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce735a64-3199-4d7d-8cb7-77434b03282c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce735a64-3199-4d7d-8cb7-77434b03282c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa0066efb2820db33cd8e103db5078aa4f6bd7d9041847c6a05d9be34c258d854","name":"Dan Washburn","registered_at":"2026-06-21T00:12:32Z","symbol":"NIM1759585","token_address":"0xde3c5930322a576d5255883d848200d4fc9692f9","type":"artist","uuid":"ce735a64-3199-4d7d-8cb7-77434b03282c"}
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
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  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0066efb2820db33cd8e103db5078aa4f6bd7d9041847c6a05d9be34c258d854. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce735a64-3199-4d7d-8cb7-77434b03282c.json and https://artists.proofprofile.net/proofs/artist/ce735a64-3199-4d7d-8cb7-77434b03282c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
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