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 07 · 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: R832.98/MWh

inputs_sha256 (server): 1f20a643299bde3d2468a6e41ecd8a913339ba9368218986650b258eb49087b8

inputs_sha256 (browser): …computing…

outputs_sha256 (server): 080b4cffe0b59b839f79c7b6cafd1f6f2183a190f8442dde3e9c8081317f1edc

outputs_sha256 (browser): …computing…

Want the CLI version instead? curl -s /api/clearing/7/replay > receipt.json && npm run verify -- receipt.json.