Its image, sound, website and description are inscribed inside the pump.fun create transaction.
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Leave empty and the coin links to its own page on Inscribe.
Re-encoded to fit the room left in the create transaction and served at /api/i/<mint>. Smaller sizes leave more room for sound and a site.
MP3 bytes ride in the create transaction next to the image and are served at /api/a/<mint>. Keep clips short and low bitrate.
A tiny page stored gzipped in the create transaction, served at /api/s/<mint> under a sandboxing CSP. It can read the coin's live stats from /api/t/<mint>.
Bought in the launch itself and sent to your wallet.
Legacy limit was 1,232 B — this launch would have taken — transactions.
Every top-level instruction and every CPI counts; 64 max per transaction.
Image, sound, site, description and website share the create transaction.