Phase 1 shadow · synthetic · independent  ·  SAWEM Phase 1 Trading Simulator — explainer-grade, not an MMS.  ·  Trading Rules Round 2 (12 April 2026 v01 draft)
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: R845.94/MWh

inputs_sha256 (server): 1d15b726085283590097d84301ccd15c1c2fb23ed526cf8f6c3cc11fe2ccabb5

inputs_sha256 (browser): …computing…

outputs_sha256 (server): 9ac8e1f6429df28cbab3466199ca9e8568988d5fddfeaab8bfa643d26deb0478

outputs_sha256 (browser): …computing…

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