{
 "rp": "0.2",
 "note": "Retention vectors (SPEC §5). readable_level(age, schedule, limit): the highest level still readable. Ages and limits in days.",
 "schedule": [
  {
   "until": "P3D",
   "max_level": 5
  },
  {
   "until": "P30D",
   "max_level": 2
  },
  {
   "until": "P1Y",
   "max_level": 1
  }
 ],
 "cases": [
  {
   "age_days": 0,
   "limit_days": null,
   "readable_level": 5
  },
  {
   "age_days": 2.9,
   "limit_days": null,
   "readable_level": 5
  },
  {
   "age_days": 3,
   "limit_days": null,
   "readable_level": 2
  },
  {
   "age_days": 29,
   "limit_days": null,
   "readable_level": 2
  },
  {
   "age_days": 31,
   "limit_days": null,
   "readable_level": 1
  },
  {
   "age_days": 364,
   "limit_days": null,
   "readable_level": 1
  },
  {
   "age_days": 366,
   "limit_days": null,
   "readable_level": 0
  },
  {
   "age_days": 1,
   "limit_days": 7,
   "readable_level": 5
  },
  {
   "age_days": 5,
   "limit_days": 7,
   "readable_level": 2
  },
  {
   "age_days": 8,
   "limit_days": 7,
   "readable_level": 0
  },
  {
   "age_days": 2,
   "limit_days": 1,
   "readable_level": 0
  },
  {
   "age_days": 7,
   "limit_days": 7,
   "readable_level": 0
  },
  {
   "age_days": 0,
   "limit_days": 0,
   "readable_level": 0
  }
 ],
 "unreadable_after": [
  {
   "level": 4,
   "limit_days": null,
   "days": 3
  },
  {
   "level": 2,
   "limit_days": null,
   "days": 30
  },
  {
   "level": 1,
   "limit_days": null,
   "days": 365
  },
  {
   "level": 1,
   "limit_days": 7,
   "days": 7
  },
  {
   "level": 5,
   "limit_days": null,
   "days": 3
  },
  {
   "level": 0,
   "limit_days": null,
   "days": 365
  }
 ]
}