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
Browser receipt verifier
Hour 18 · 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: R2191.65/MWh
inputs_sha256 (server): a6f80bcde1cca459cb4ae16535deeb55525abc1dba04685e3f09b6f5e6e9d248
inputs_sha256 (browser): …computing…
outputs_sha256 (server): ab7265158464c5fa367fb441d365d74c4dd4423555673b19ac24b5532385314f
outputs_sha256 (browser): …computing…
…
Want the CLI version instead?
curl -s /api/clearing/18/replay > receipt.json && npm run verify -- receipt.json.
Synthetic data. No real money. No NTCSA SCADA / SARB rails / participant identities.
Trader-role bid submissions are rejected by the live auction with
bid_rejected · reason=phase1_trader_exclusion.
Distributor is still Eskom Distribution as of 2026-05-29;
NEDCSA (the planned subsidiary) is scheduled for 2027 stand-up
(SAWEM Reference §06).