Marketplace
Inklings ships as layered ink-wash APNG traits and as flattened GIF tokens. OpenSea wants the GIF bake of those loops. The APNG stack stays in this repo for the studio and any later restack.
Project description
Collection name Inklings. Symbol INKL. Category PFPs. The same copy lives in public/metadata/inklings-description.txt.
Inklings are painted cartoon squids, not pixel art. A 5,555-piece collection of looping ink-wash squid PFPs on Ink, Kraken’s Ethereum layer 2. Each Inkling is stacked from six painterly layers — paper, bloom, visage, gaze, mark, and adorn — then flattened onto one 16-frame GIF. Dye drifts. Eyes blink. Tentacles sway. Soft edges only. Minting on Ink (chain ID 57073). Gas is ETH.
Listing kit
OpenSea wants a square logo, a 3:2 featured image, and a wide 4:1 banner — three different pictures, no type on the marketplace images. The site hero can reuse the taller banner.

Logo
512×512, 1:1
public/brand/logo-inklings.png

Featured
1200×800, 3:2
public/brand/featured-inklings.jpg

OpenSea banner
2800×700, 4:1
public/brand/banner-inklings-opensea.jpg

Collection GIF
1000×1000 loop
public/brand/collection-inklings.gif
Wallet setup
RPC https://rpc-gel.inkonchain.com
Explorer https://explorer.inkonchain.com
OpenSea does not stack APNG layers for you. Studio is a live compositor. For a Drop you upload finished GIFs plus a CSV. Run the generator to bake each token onto the shared 16-frame clock, then gif_bake.py to make the marketplace loops.
In OpenSea Studio, create a Drop on Ink (chain ID 57073). Set supply to 5,555, paste the project description, and upload the listing kit from public/brand.
Upload every file in generated/inklings/gifs (1.gif–5555.gif) and generated/inklings/INKLINGS-opensea-drop.csv. The CSV already uses OpenSea’s required headers (tokenID, name, description, file_name, attributes[Trait]). OpenSea plays GIF, not APNG. Preview the loops, then publish.
contracts/Inklings.sol mints token IDs 1–5,555. Pin generated/inklings/json and set the base URI. Import that contract on OpenSea instead of using a Drop if you want a custom mint.
Drop upload notes: Preparing metadata for your drop. Live collection: opensea.io/collection/inklings-on-ink. OpenSea on Ink: supported chains.