Phase 1 shadow · synthetic · independent  ·  SAWEM Phase 1 Trading Simulator — explainer-grade, not an MMS.  ·  Built from the publicly available Trading Rules; Round 2 not yet gazetted
Trading day 2026-05-29 virtual hour 00 Auction state: ACCEPTING gate close in 18h:00m DAM clear IDM re-clear Balancing Settlement
SAWEM
Browser receipt verifier

Hour 23 · in-browser

Your browser hashes the receipt inputs and outputs with WebCrypto and compares to the server-computed digests. No server trust required beyond the JSON payload itself.

SMP: R857.23/MWh

inputs_sha256 (server): 6aa1a0af334828239c98366363010c49b56f4c4a0ca8ffa3ed37d1d12d1204f7

inputs_sha256 (browser): …computing…

outputs_sha256 (server): a8283f71e981cf09ad3002e1e5999f5653e6b8d6eafecbdae77e0f433763cc48

outputs_sha256 (browser): …computing…

Want the CLI version instead? curl -s /api/clearing/23/replay > receipt.json && npm run verify -- receipt.json.