# Shapes

Source: https://shapes.ripe.wtf
Kiwi News: https://news.kiwistand.com/stories/Shapes?index=0x6a9b4a5c91cd876a822747950fd18c3c4c767d44b2559b73d76f4b8f1eb9adb0e9ef0dc9
Submitted by misha on 2026-09-04 UTC, 2 upvotes, 0 comments

## Summary

Shapes is an onchain generative ERC-721 project in which each Shape is backed by one of nine fixed amounts of ETH and can be burned at any time to redeem that exact backing. The backing value determines the artwork, with higher values producing fewer marks, such as a 0.01 ETH Shape filling a 5 × 5 grid and a 100 ETH Shape appearing as one mark on a field. Minting costs the selected backing plus a one-time 0.001 ETH fee, and the contract holds the ETH without lending, staking, or investing it. Compatible Shapes can also be composed into a higher-value Shape, with their ETH and history moving into the survivor.

## Article

Each Shape holds an exact amount of ETH. That value determines its appearance, and the holder can destroy the Shape at any time to get the ETH back.

Mint a Shape

The project

ETH in, Shape out. Shape burned, ETH returned.

A Shape is a generative ERC-721 backed by one of nine fixed amounts of ETH. Its value is readable onchain, so it can be collected, transferred, traded, or used by another contract while remaining exactly redeemable.

Higher value produces fewer marks. A 0.01 ETH Shape fills a 5 × 5 grid. A 100 ETH Shape is one mark on a field. The artwork and metadata are generated entirely onchain.

How it works

Value with a visible history.

01

Mint

Choose a tier and send its backing plus the 0.001 ETH mint fee. The Shape is generated onchain.

02

Compose

Compatible Shapes can become a higher-value Shape. Their ETH and history move into the survivor.

03

Redeem

Burn a Shape to receive its exact backing. There is no redemption fee.

0.1 ETH

0.05 ETH

0.01 ETH

0.01 ETH

0.01 ETH

0.01 ETH

0.01 ETH

0.05 ETH

0.01 ETH

0.01 ETH

0.01 ETH

0.01 ETH

0.01 ETH

10 recorded origins · 0.01 ETH each

Example provenance

Every Shape this one was built from. Burned Shapes can still be drawn from their recorded seeds.

Practical details

Before minting

Where does the ETH go?

The contract holds it until redemption. It does not lend, stake, or invest it.

How does redemption work?

The current holder burns the Shape and receives its exact backing. There is no redemption fee.

What does minting cost?

The selected backing plus a one-time 0.001 ETH fee. A 1 ETH Shape costs 1.001 ETH to mint.

What is stored onchain?

The value, artwork, metadata, and composition history. No external image host is required.