{"schema":"vela.problem-packet.v0.1","problem":213,"statement":"Let $n\\geq 4$. Are there $n$ points in $\\mathbb{R}^2$, no three on a line and no four on a circle, such that all pairwise distances are integers?","status":"open","seam":"raw","closureRoutes":[],"obligations":[],"attestations":[],"attempts":[{"id":"att_892c036aa0fb0118","kind":"dead_end","claim":"attempted via frontier '?' (transfer_strength=n/a) -> already_known","grade":"honest_null","gateStatus":"needs_verification","superseded":false}],"velaLean":[],"oeis":[],"generated_note":"derived view; the signed event log is the source of truth (vela check / vela reproduce)"}