id: EA-HK-REVFIRST-01/traversal
entry: Any record, surface page, rung, claim or capture; the reader climbs node → claims → relations → body, rung and stratum → the kernel.
modes:
  whole:
    must_return:
    - INV-1 to INV-7
    - the current state on each axis with its record
    - the six rungs with their fits
  rung:
    input: a rung
    must_return:
    - its claim
    - its fit
    - its defeat condition
    - what depends on it and what does not
  historical:
    input: a date
    must_return:
    - the states in force on that date
    - only claims introduced on or before it
    must_not: attribute a later state to an earlier record
  join:
    input: a join
    must_return:
    - its role here
    - its role in the other kernel
    - its edge to the Historical Logos