nx_commons_ledger.nx

nx_commons_ledger.nx -- the LEDGER->STANDING bridge. Turns a plane of transfer rows into the per-member quantities nx_commons_lib scores. WHY: nx_mycorrhiza held flows in sys_mmap and nothing else. A currency whose record of who-gave-what dies with the process is not a currency. Persistence itself is SOLVED and not rebuilt here -- nx_plane_append is the known good (original bytes held for restore, absent plane REFUSED rather than conjured, prefix-preservation checked BEFORE commit, row count re-verified AFTER, and it states its own honest limit: it serialises only the appends made through it). This organ supplies the two things that were missing: the row GRAMMAR and the AGGREGATOR. ★★★★★★ THE REAL WIN: TWO OF THE BENCH'S MAGIC INPUTS BECOME DERIVED QUANTITIES. nx_commonsbench_gate had to be TOLD each member's passed_outside and outside_partners. A number a fixture hands you is an assumption; a number the ledger computes is a measurement. From transfer rows alone: gave[i] = sum of units where i is the giver took[i] = sum of units where i is the receiver passed[i] = units i gave to parties i NEVER RECEIVED FROM -- onward circulation, not return trips partners[i] = distinct counterparties The passed[] rule is what makes the sybil ring fall out of the arithmetic instead of being asserted: a ring trades 2000 in and 2000 out but every counterparty is one it also received from, so its onward circulation is ZERO by measurement. A janitor gives to twelve people he never took from, so nearly all of his giving counts. NOBODY HAD TO LABEL EITHER OF THEM. IDEMPOTENCY (law 10): appending the same contribution twice would mint standing from nothing. Dedup is by record id, and the comparator and the writer share ONE canonical-form function by construction -- the estate has already paid for the alternative, where nx_debt's deduper compared the raw text while its writer appended a suffix afterwards, so the two never converged. Integer only. license_tier: ORIGINAL No hw writes (Rule 26).