Chris Poland
type: MusicGroup
description: Chris Poland (born December 1, 1957) is an American guitarist, best known as the former guitarist of the thrash metal band Megadeth. Since 2002, Poland has been the guitarist of the instrumental rock/
popularity: 4
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x465e6a92084c176d8108ff0098c6b640a312cbef17c0c39e0125113bbba16fc9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954062
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954062
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/471b4b52-8d52-4281-9616-327e035de980.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/471b4b52-8d52-4281-9616-327e035de980.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/471b4b52-8d52-4281-9616-327e035de980
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T07:39:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x465e6a92084c176d8108ff0098c6b640a312cbef17c0c39e0125113bbba16fc9","name":"Chris Poland","registered_at":"2026-06-16T14:19:41Z","symbol":"NIM1078600","token_address":"0xb07a824fdc35105e704b87b0db87defa309acce0","type":"artist","uuid":"471b4b52-8d52-4281-9616-327e035de980"}
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 0x465e6a92084c176d8108ff0098c6b640a312cbef17c0c39e0125113bbba16fc9. Chain 2 (Bitcoin): anchored in block 954062 (2026-06-17T07:39:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/471b4b52-8d52-4281-9616-327e035de980.json and https://artists.proofprofile.net/proofs/artist/471b4b52-8d52-4281-9616-327e035de980.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T07:39:10Z
  text: {"copyright_id":"0x465e6a92084c176d8108ff0098c6b640a312cbef17c0c39e0125113bbba16fc9","name":"Chris Poland","registered_at":"2026-06-16T14:19:41Z","symbol":"NIM1078600","token_address":"0xb07a824fdc35105e704b87b0db87defa309acce0","type":"artist","uuid":"471b4b52-8d52-4281-9616-327e035de980"}