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 05 · 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: R850.31/MWh

inputs_sha256 (server): 23ba19f294a4b82c21bb6102b635e6b9998813ed45114154fa4495f482853c69

inputs_sha256 (browser): …computing…

outputs_sha256 (server): 96645dd710de8b458efa341def560c05058cd9e037b7efcd79b8cb23b15b68be

outputs_sha256 (browser): …computing…

Want the CLI version instead? curl -s /api/clearing/5/replay > receipt.json && npm run verify -- receipt.json.