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 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: R831.08/MWh

inputs_sha256 (server): 45b21b54215121a06ba02885c93f8661e49b91b6d8acd0b794a848f9ed3ccf86

inputs_sha256 (browser): …computing…

outputs_sha256 (server): a4a373715a6cbeecd409015eac21d621de301dec9566318c19cfb0e6cce080d5

outputs_sha256 (browser): …computing…

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