Jeffrey Kim Schroeder (born February 4, 1974) is an American musician. He is best known as a former guitarist in the alternative rock band the Smashing Pumpkins, performing with them from 2007 to 2023
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 0x62f63d9b31a95e39daf1d88e04ccfb0604b6953f8ff1513fa4fc932f58eddfae. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/983cfa3b-a2a7-4003-ad57-e6a08a325436.json and https://artists.proofprofile.net/proofs/artist/983cfa3b-a2a7-4003-ad57-e6a08a325436.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).