starl3xx.fun / clankton

The Clankton Town app icon: the purple plankton mascot striking a thoughtful pose.

Clankton Town

NFT

A 50-edition NFT by thepapercrane, minted on Base in $CLANKTON, the token that later migrated to $WORD. Talking about the mint was what made it cheaper, and all fifty sold.

Open the mintGitHub repoContract on BaseScan
The Clankton Town mint open inside Farcaster: the underwater-town artwork, a sold-out bar reading 50 / 50 minted, a price of 17,500,000 CLANKTON against a base of 20,000,000, and rows of discount chips with the earned ones ticked green.
Sold out at 50 of 50: the price panel showing which discounts this wallet had earned.

By the numbers

50 / 50editions minted
40collectors
3d 15hopen to sold out
45%average discount earned
451M$CLANKTON discounted
nonemints at full price

Minting opened 16 December 2025 at 17:00 UTC and closed sold out on 20 December. Read back from the contract’s mint events on Base.

What it does

Sharing set the price
The list price was 20,000,000 $CLANKTON (about $10 when it was announced, with the floor landing near $5). Eight social actions each knocked a fixed amount off: a cast was worth 2M, recasting the announcement 4M, a tweet 1M, and follows, channel membership, Farcaster Pro and an early-FID check between 500K and 750K apiece, down to a floor of 10,000,000.
Discounts you can’t grant yourself
Every claim is verified against Neynar server-side and the final price is signed, then checked again by the contract. The browser can ask for a discount; it can’t award one.
A mini app, not a mint page
Running inside Farcaster means it already knows who you are, so five of the eight discounts resolve the moment it opens and the rest compose in place.

How it works

  1. Open it in a Farcaster client and it reads your FID, then settles the five automatic discounts on the spot: the two follows, /clankton membership, Farcaster Pro, and whether your FID is under 100,000.
  2. The other three are things you do: cast, recast the announcement, or tweet. Each opens a composer, and the discount only lands once Neynar confirms the post, written to Postgres against your wallet, idempotently, so it can’t be claimed twice.
  3. At mint the server recomputes your price from the database and signs it as an EIP-712 message. The contract verifies that signature before it will accept payment, so the discount is enforced onchain rather than in the interface.
  4. Signatures are single-use and the edition is capped at 50 in the contract, so neither the price nor the supply depends on the app behaving itself.
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