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 16 · 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: R865.47/MWh
inputs_sha256 (server): dd1861e02b65092bdacf3ec4b4b764a8b3560bfb9cb3ec3d349b3c545f910582
inputs_sha256 (browser): …computing…
outputs_sha256 (server): 5cbf569cf2bd3ef6122445303f4fb2e8c39223c231c1c8b6377a65a1fc9c3341
outputs_sha256 (browser): …computing…
…
Want the CLI version instead?
curl -s /api/clearing/16/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).