About a minute
Why the math is a circuit.
A formula you can open
A bill app usually hides the rounding. FairGate names the inputs, writes the formula, and keeps test vectors next to the result. If a share looks wrong, you can see which step made it.
What TapeOut is
TapeOut is a BNB Chain protocol. People place NAND and LATCH components on a canvas, then tape that design out into an on-chain circuit NFT. NAND is a logic gate. A LATCH holds a value, like a one-bit memory.
What tape-out means
In chip work, tape-out is the moment a design is locked and sent to be made. After that, quietly changing it is hard. FairGate borrows that idea: each calculator is a template with an id, a gate count, pins, and public tests.
This version
You are using an inspectable circuit model in the browser. It is not guaranteed on-chain. Live TapeOut tape-out is planned for a later version. There is no wallet, no token, and no price chart here.
A NAND, by hand
Output is off only when both inputs are on. That is the whole gate.
Output ON
| A | B | NAND |
|---|---|---|
| 0 | 0 | 1 |
| 0 | 1 | 1 |
| 1 | 0 | 1 |
| 1 | 1 | 0 |