Getting started with ChainChum

ChainChum is a marketplace for real art by real people: originals, numbered prints and handmade goods from independent artists and families. Every piece sold comes with a certificate of authenticity you can verify, and sellers keep 95% of every sale.

You can try it right now at chainchum.app. Browsing is open to everyone; you only need an account to sell or buy.

#Who can use ChainChum?

• Artists who paint, draw, print, sculpt, sew, throw pots or make anything by hand.
• Parents and families who want to keep, share and sell their children's artwork. The parent is always the seller; see Family art and safety.
• Buyers and collectors who want art that is provably human-made.

ChainChum is for adults. Everyone who creates an account confirms they are 18 or older. Children never have accounts.

#What you need

• An email address (or a Google account) to sign in.
• Good photos of your work if you plan to sell. See Create a listing for photo tips.

That is all. You do not need a crypto wallet, a seed phrase or any cryptocurrency. The original ChainChum asked for MetaMask; the new one handles the technical side for you. We will never ask for a password, recovery phrase or private key.

#How does it work?

1. Open your shop. Sign up, confirm you are 18 or older, and pick a shop name. Open your shop walks through it.
2. List a piece. Add photos, a title, a price and a shipping profile. ChainChum checks every photo to keep AI-generated images out. Create a listing.
3. Publish and certify. ChainChum mints the work's NFT certificate (its $1 fee comes out of the first sale); then your work appears in Explore and on your shop page. Publish and pricing covers fees and editions.
4. Sell. When someone buys, they pay by card through Stripe and the piece's certificate of authenticity transfers to them. Buying on ChainChum explains the buyer side.

#What makes ChainChum different

• Human-made, checked. Photos are screened for AI-generated images and every seller is a verified adult.
• A certificate with every piece. Minted when the work is published, following it to every owner, verifiable at any time, optionally printed on cotton stock. Certificates of authenticity.
• Sellers keep 95%. One flat 5% on what sells, plus a $1 certificate fee per work, taken from its first sale. No monthly plan and no forced ads.
• A private Art Vault. Keep a photo archive of every piece, sold or not. Art Vault.

#Need help?

Write to chainchum@dataexpansed.com or see Contact us.