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 21 · 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: R864.37/MWh

inputs_sha256 (server): e5467fa36d2a5a45d6e688474ccc73c6313c938c886c299a2382c933e0aa92f6

inputs_sha256 (browser): …computing…

outputs_sha256 (server): b4d8e5fb91315e9858b8e24f2b8fc472cc7ccc936e7565e1586402bb7ca511f4

outputs_sha256 (browser): …computing…

Want the CLI version instead? curl -s /api/clearing/21/replay > receipt.json && npm run verify -- receipt.json.