{"schema":"vela.problem-packet.v0.1","problem":829,"statement":"Let $A\\subset\\mathbb{N}$ be the set of cubes. Is it true that\\[1_A\\ast 1_A(n) \\ll (\\log n)^{O(1)}?\\]","status":"open","seam":"raw","closureRoutes":[],"obligations":[],"attestations":[],"attempts":[],"velaLean":[],"oeis":[],"generated_note":"derived view; the signed event log is the source of truth (vela check / vela reproduce)"}