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/
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
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).