Plexi was an American gothic noise rock band consisting of Michael Angelos (vocals, songwriting, bass), Michael Barragan (guitar, Echoplex, Moog) and Norm Block (drums, percussion). Formed in 1993, th
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a3d9b68907119ae6bb72e2fe35143dce4cf395b014e66d64ea60802ef83e8bc. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d26a18a2-ab87-4519-846a-c68a346de4ee.json and https://artists.proofprofile.net/proofs/artist/d26a18a2-ab87-4519-846a-c68a346de4ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).