Jack Grisham (born July 22, 1961) is an American rock singer from Southern California. He is the vocalist for the punk rock band T.S.O.L. (True Sounds of Liberty), which emerged from the late 1970s Lo
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 0xe2de8f0c7bbc103459ba00c90d2b6c00083fd087a40329176dc9b3c41ddfb331. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9431f56e-09d0-4221-8e34-953305eb929f.json and https://artists.proofprofile.net/proofs/artist/9431f56e-09d0-4221-8e34-953305eb929f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).