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 12 · 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: R856.18/MWh

inputs_sha256 (server): 5c275e56b4d28b9e6c9afcba721154572bd2c01d87ff650afccdbdb5e021aa86

inputs_sha256 (browser): …computing…

outputs_sha256 (server): e762a38c65b7d17625326f46c4ecca3422b1165dd907db05c4b6f64386a50e5c

outputs_sha256 (browser): …computing…

Want the CLI version instead? curl -s /api/clearing/12/replay > receipt.json && npm run verify -- receipt.json.