A BTC invoice with no account.

You control the receive address. The buyer sends an exact unique-cent amount. A public explorer is the receipt. No login. No processor. No custody.

How to send one

Open the free invoice tool.
Paste a BTC address you control (bc1…).
Enter the dollars. The page freezes unique sats.
Send that exact amount. Watch mempool.space or blockstream.info for the exact sat amount.

Ten people sending the same round BTC look the same on-chain. Unique sat amounts do not. The extra sats are the payment ID.

Default kit rail is still USDT TRC-20. BTC matches if the sat amount is exact. Frozen kit SKU is 15366 sats for 12.37.

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