Buying on ChainChum

ChainChum is opening to buyers in stages. Checkout opens with our pilot, so for now the Buy button on a work page is shown but not yet active. This guide explains how buying will work so you know what to expect.

#Before you buy

Read the work page carefully: photos, size, medium, edition number, where it ships from and how long the seller takes to send it. If you have a question for the seller, messaging is on its way; until then, their shop page may link to their website.

#Paying

• Press Buy on the work page and sign in (or create an account) if you have not already.
• Pay by card, Apple Pay or Google Pay through Stripe. ChainChum never sees or stores your card number.
• Sales tax is calculated at checkout where it applies.
• There is no buyer fee and no certificate fee on top of the price, shipping and tax.
• You never need cryptocurrency, a wallet or gas fees. The original ChainChum asked buyers to pay from MetaMask; the new one does not.

#After you buy

1. You get an order confirmation by email.
2. The seller ships within their handling time and you can follow the delivery.
3. The piece's certificate of authenticity transfers to you, by email as a PDF and in your account, at no extra cost: the seller paid for it when they published the work. See Certificates of authenticity.
4. Share your new piece with friends, and tag the artist.

#Digital downloads

A download is delivered as soon as you pay. Open the order (from the email or Me › Purchases) and press Download. Each link works for 24 hours and 5 downloads; press Make a new link whenever you need one. The order page and the listing show the licence you bought.

#Sold out, or not on sale yet

On a sold-out piece, or while selling has not opened, press Tell me when it's available and leave your email. We send a link to confirm first; after that you get one email when it can be bought, and we delete your address. Every email has an unsubscribe link. No account is needed.

#Returns and buyer protection

Our buyer protection policy, which will be published with checkout, gives you 14 days to return originals and prints. You pay return shipping unless the piece is not as described. Print-on-demand items with defects are reprinted, and digital downloads are final. If something goes wrong, you can open a dispute from your order and we decide fairly using the photos, tracking and certificate.

#Is it really human-made?

Every seller is a verified adult, every photo is screened for AI-generated images, and every sale carries a certificate tied to the work's photos and details. If you ever doubt a listing, write to chainchum@dataexpansed.com.