SP rectangle regular provenance.json

{
  "baseline_MT_standard_head": 4114,
  "postFlood_begetting_gain": 650,
  "preFlood_begetting_loss": 350,
  "full430_SP_chain_head": 4414,
  "declared_native_frame_change": -215,
  "native_chain_head": 4199,
  "week_opening_offset": 7,
  "source_week_opening": 4206,
  "Exodus_radius": 2760,
  "equation": "(4114-1446)+650-350-215+7=2760"
}