TapeFoundry
Parts and gates
The unit of the system is one NAND gate. Price, scarcity and supply are all derived from it.
What a part is
A part is a single NAND gate, held as an ERC-1155 token on the parts contract. There are two token ids: 0 for NAND and 1 for LATCH. Series 01 uses NAND exclusively.
Gates are fungible within their id: one gate is the same as another. What differs between drawings is how many gates a circuit needs, not which gates they are.
Why gates instead of a supply number
If a project says "100 editions", the number is arbitrary — it exists because someone typed it. If a project says "this circuit needs 46 gates, and 100 editions will be made", the supply has a physical meaning: 4,600 gates will be destroyed.
| Drawing | Gates per card | Cap | Gates consumed |
|---|---|---|---|
| MUL12 | 2,118 | 50 | 105,900 |
| ALU16 | 1,196 | 700 | 837,200 |
| DIV8 | 976 | 700 | 683,200 |
| MUL8 | 916 | 700 | 641,200 |
| CMP64 | 842 | 700 | 589,400 |
| CMP4 | 62 | 100 | 6,200 |
| EQ8 | 58 | 100 | 5,800 |
| SUB4 | 51 | 100 | 5,100 |
| ADD4 | 46 | 100 | 4,600 |
| MUL2 | 43 | 100 | 4,300 |
| SHIFT4 | 40 | 100 | 4,000 |
The foundry holds 12,000,000 gates of capacity. That is the factory's ceiling, not the card supply: Series 01 uses 2,886,900 of them at cap, leaving room for later stages on the same processor.
Buying parts
mint(uint256 transistorId, uint256 amount)
// transistorId: 0 = NAND, 1 = LATCH
// value: amount × 0.0000234 + 0.0001 BNBThe protocol fee is charged once per mint, not per gate. Buying 46 gates in one call costs 0.0001 in protocol fee; buying them one at a time would cost 46 times that.
What happens to them
Gates never leave the parts contract as free-floating supply. When a card is taped out, the matching gates are burned from the buyer's balance. The burned count is recorded on the circuit and cannot be edited.
Leftover parts
If a tapeout fails after the mint, the gates stay in your wallet. Retrying the tapeout does not buy them again — the page reads your balance first and only mints the shortfall. Gates do not expire.