Docs

How Lunauts works.

Every number on this site comes from one deterministic pipeline: a seed produces the art, the art produces the rarity table, and the rarity table is written into the metadata. Nothing is assigned by hand, so anyone can rebuild the collection and check it.

Art & generator

DeterministicSeed lunauts-genesis-v1 drives a seeded PRNG, so token #1,337 always gets the same layers on any machine.

Layered vectors13 trait types are drawn as original flat-vector SVG layers, then rasterised to 1024px PNG. No traced or borrowed art.

No duplicatesTrait combinations are hashed while generating; a collision is rerolled, so all 2,000 tokens are unique.

Rarity method

sum of supply / trait count across all traits; rank 1 = highest score. Scores come from realised trait frequency after generation, so a rare value stays rare even if the weights drift. Each token gets a tier and a numeric rank, both written into its metadata.

Tiers

Mythic · top 1%20 tokens

Legendary · top 5%80 tokens

Epic · top 15%200 tokens

Rare · top 40%500 tokens

Uncommon · top 70%600 tokens

Common · top 100%600 tokens

Full trait distribution →

Metadata

Token metadata follows the OpenSea standard, with rarity exposed as attributes so marketplaces can sort on it. Pre-reveal, every id serves the same placeholder document.

{
  "name": "Lunaut #1",
  "description": "One of 2,000 Lunauts...",
  "image": "ipfs://<art-cid>/1.png",
  "external_url": "https://lunauts.com/lunaut/1",
  "attributes": [
    { "trait_type": "Background", "value": "Dawn Haze" },
    { "trait_type": "Headgear", "value": "Crater Crown" },
    { "trait_type": "Rarity Tier", "value": "Mythic" },
    { "trait_type": "Rarity Rank", "value": 1, "display_type": "number" }
  ]
}

Contract

StandardERC-721 + ERC-2981 royalties

Supply cap2,000, immutable

PhasesClosed → Public, owner-controlled, no allowlist

Mint price0.0001 ETH, max 5 per wallet

RevealPlaceholder URI, then a one-way switch to the final base URI

WithdrawOwner-only pull to the payout address

Drop variantLunautsSeaDrop, for an OpenSea Drop on the same chain

Address0x9BA9D6F74C2DFe388eB169DFEE6F7ABe9D6E7807

Chain settings

Ethereum

Chain id1

Gas tokenETH

RPChttps://ethereum-rpc.publicnode.com

ExplorerEtherscan

Sepolia

Chain id11155111

Gas tokenETH

RPChttps://ethereum-sepolia-rpc.publicnode.com

ExplorerEtherscan

Add the active network (Ethereum) to your wallet with the values above. Public RPCs are rate limited — a dedicated RPC is recommended for heavy use.

Verify it yourself

The generator, rarity script and contracts ship in the project archive. Run these to reproduce every claim on this site.

npm run generate --workspace packages/artre-render all 2,000 SVG + PNG from the seed

npm run rarity --workspace packages/artrecompute trait distribution, tiers and ranks

npm run placeholder --workspace packages/artbuild the pre-reveal metadata and image

npm test --workspace packages/contractsrun the mint contract test suite

forge testrun the SeaDrop variant tests in packages/seadrop

Raw data: rarity-traits.csv · rarity-tokens.csv