Peter Halsten Thorkelson (February 13, 1942 – February 21, 2019), better known by his stage name Peter Tork, was an American musician and actor. He was best known as the bass guitarist and keyboardist
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 0xafac6a83393fd328f2aab901548431d9bbc8c43564195d6c9c133fe4d9cdf853. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/697dd51c-1c47-47f0-9194-0b2d9ca24b86.json and https://artists.proofprofile.net/proofs/artist/697dd51c-1c47-47f0-9194-0b2d9ca24b86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).