How Sigmamarkt works
Listing to payout in 5 sealed steps.
Listing
The seller opens a listing and the account enters Hand-off custody at that exact moment — recovery routes rotated, email alias re-bound. What is on this shelf is off the market everywhere else; double-listing is structurally impossible.
Escrow
The buyer pays by crypto, card or wallet. Funds land in escrow — not in the seller's pocket — and the ledger shows every line: price, commission side, FX at mid-market, gateway cost. Nothing is charged that was not shown.
Hand-off Ceremony
Credentials, recovery data and 2FA move to the buyer inside a sealed, logged ceremony — never over open chat. Every step is HMAC-signed into the Provenance Chain as it happens.
Verify
The buyer has 7 days to log in and check the inventory against the listing. Verified attributes were snapshotted at publication — Listed = What You Get is checkable, not aspirational. A mismatch inside the window freezes everything.
24h Payout
On acceptance, the seller is paid within 24 hours on their chosen rail — Wise, crypto, iyzico and more. The payout figure matches the listing-time NetPayout row to the cent (±$0.01, F1).