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 04 · 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: R832.05/MWh

inputs_sha256 (server): ee4bafc870ca707bdf27d91d23bd9a00863422c77e3244ad320815c8a5843fa5

inputs_sha256 (browser): …computing…

outputs_sha256 (server): f2baa20d38e4dcef1dfe00fea7e72955e39afa5ba95f7e17cd529de942578383

outputs_sha256 (browser): …computing…

Want the CLI version instead? curl -s /api/clearing/4/replay > receipt.json && npm run verify -- receipt.json.