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The original was posted on /r/nanocurrency by /u/arthoj on 2025-08-12 15:17:27+00:00.

Hey everyone, Arthô Pacini here, CEO/founder of Blocky.com.br

I’m excited to finally share what we’ve been building, a new nano focused crypto exchange and stablecoin issuer built on the nano tech.

Here in Brazil, we have PIX, an instant, free payment system, built by the Brazil’s Central Bank. We believe that this UX should be the standard for stablecoins, not the exception. To achieve this, we did what felt most natural: we forked/cloned the Nano protocol to bring near instantaneous, asynchronous and feeless stablecoins transactions on-chain:

  • XBRL: Pegged 1:1 with the Brazilian Real (BRL).
  • XUSD: Pegged 1:1 with the US Dollar (backed by USDT on TRON for now).

Our exchange is live with the following pairs:

  • XNO/XBRL: Trade Nano against Brazilian Reais. We’re providing liquidity here.
  • XNO/XUSD: Trade Nano against US Dollars. Liquidity is our next big focus here, and we’d love the community’s help.

Of course, using the stablecoins directly is completely optional. You can just use Blocky as a straightforward exchange, no need to use XUSD or XBRL on-chain.

How the Ӿ Family Works

We use a transparent treasury on our networks. Here’s the flow:

  • To Issue: You deposit BRL via PIX, and we send you the equivalent XBRL from our treasury, putting it into circulation. Same goes for USDT-TRC20 and XUSD.
  • To Redeem: You send XBRL back to us, we credit your BRL balance into your bank account, and the XBRL is swept to our cold wallet, leaving circulation. Same for USDT and XUSD.

This entire system is auditable on our block explorers. Our key protocol change was adjusting the decimal precision to allow for a supply large enough for fiat currencies.

We’re bootstrapped, open-source, and passionate about this tech. We invite you to check it out.

We’d be thrilled to have you create an account and help us grow. I’ll be in the comments to answer any questions.

Nano é luz!

https://preview.redd.it/b473jwzz7oif1.png?width=2500&format=png&auto=webp&s=9ea586956203166b0bf4e7a2995f6a4294cfff55