# Bech32

> ⚠️ **Experimental, generated with no human supervision** by the daily pipeline to exercise gno tooling. Not audited. See [r/moul/x/daily](https://github.com/moul/gno-contracts/blob/main/r/moul/x/daily/README.md).

---

Takes a real gno.land address apart, shows the BIP-173 and BIP-350 vectors side
by side, and reproduces the length-extension weakness that Bech32m was created
to close.

```
/r/moul/x/daily/bech32demo/v0            → the address, the vectors, the weakness
/r/moul/x/daily/bech32demo/v0:a1lqfn3a   → decode your own string
```

Demo of the [`p/moul/x/daily/bech32`](https://github.com/moul/gno-contracts/tree/main/p/moul/x/daily/bech32)
library, no codec logic lives here. Stateless, so `Render` is deterministic.

The last table is the argument for the library, and it is computed on the page
rather than asserted: `a1q3g6mnsp` and `a1q3g6mnsqp` both come back accepted
under Bech32, and the Bech32m pair beside them does not.

A human-readable part is any printable ASCII, so it can hold a pipe, a backtick
or a slash. It is escaped with `ui.Cell` before it reaches a table cell, and the
argument itself with `ui.Inline`, which is what the realm's own test breaks to
check.

The whole render path after the colon is taken as the string to decode, and
nothing is trimmed. A slash is legal in a human-readable part, so splitting on
one would refuse a valid string, and trimming whitespace would render a clean
decode beside a value the page had quietly altered.

The hex column comes from [`p/moul/x/daily/hexdump`](https://github.com/moul/gno-contracts/tree/main/p/moul/x/daily/hexdump),
which owns the digits: `ufmt/v0` has no `%x` for a byte slice.

Built for gno 0.9.

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---

Part of **[moul/gno-contracts](https://github.com/moul/gno-contracts)** — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.

**On mainnet:** [![deployment status](https://gnoscope.com/_badges/shield/status/r/moul/x/daily/bech32demo/v0?network=mainnet)](https://gnoscope.com/realm/r/moul/x/daily/bech32demo/v0) [![transactions](https://gnoscope.com/_badges/shield/txs/r/moul/x/daily/bech32demo/v0?network=mainnet)](https://gnoscope.com/realm/r/moul/x/daily/bech32demo/v0) [![unique callers](https://gnoscope.com/_badges/shield/users/r/moul/x/daily/bech32demo/v0?network=mainnet)](https://gnoscope.com/realm/r/moul/x/daily/bech32demo/v0) [![deployed revision](https://gnoscope.com/_badges/shield/version/r/moul/x/daily/bech32demo/v0?network=mainnet)](https://gnoscope.com/realm/r/moul/x/daily/bech32demo/v0)

**Dependency graph:**

![gno.land/r/moul/x/daily/bech32demo/v0 dependency graph](https://raw.githubusercontent.com/moul/gno-contracts/main/_assets/gno.land/r/moul/x/daily/bech32demo/v0/deps.png)

> 🧪 **Highly experimental — potentially vibe-coded.** Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: [DISCLAIMER](https://github.com/moul/gno-contracts/blob/main/DISCLAIMER.md).

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