Demo only — no real funds. Each $1,000 cUSD note carries its own secret
and its own token, which anchors the value.
Whoever holds the secret can cash it out — no account needed. Redemption is
one-time, exactly like spending cash you were handed.
Your pocket
Recent notes on the network
Public serial numbers only — the secret is the cash, and it never leaves the holder.
CoinCard smartcard — P2P and cash-out
Only CoinCard smartcards work — each presents the applet AID
F0434F494E4341524403. A token on a card is like cash: it can
P2P with any other CoinCard card, and whichever CoinCard card holds it
can cash it out. No other card is accepted.
Purchase → delivery: buy on coincard.one → CoinCard →
Android app → JavaCard in a USB reader
(DEPOSIT_TOKEN). EXTRACT_TOKEN shreds before
DEPOSIT — a mid-flight failure burns but never
duplicates.
Card A CoinCard
EMPTY
Card B CoinCard
EMPTY
Idle. Purchase a token, then move it or cash it out.