{
  "date": "2026-09-08",
  "sources": [
    {
      "name": "F. Broucke, On the connection between zero-free regions and the error term in the prime number theorem, Analysis Mathematica (2026)",
      "url": "https://link.springer.com/article/10.1007/s10476-026-00176-y",
      "role": "current calibration of the zero-free-region to PNT-error direction and near-sharpness questions"
    },
    {
      "name": "D. R. Johnston and T. Trudgian, A round of Pintz to celebrate oscillations in sums, Analysis Mathematica (2026)",
      "url": "https://link.springer.com/article/10.1007/s10476-026-00181-1",
      "role": "current calibration of the reverse arithmetic-information to zero-free-region philosophy"
    },
    {
      "name": "Guth and Maynard, New large value estimates for Dirichlet polynomials, Annals of Mathematics 203(2), 2026",
      "url": "https://annals.math.princeton.edu/2026/203-2/p06",
      "role": "current large-value and zero-density calibration; no fixed seeded strip-gap theorem supplied"
    }
  ]
}