Files
grin-lws/migrations
jwinterm 75542f6358 Phase 3: PMMR-index background scanner (fills the store, serves balances)
Replace the stub scanner with the real incremental algorithm:
- discover: page get_unspent_outputs (with proofs) from the cursor to
  the tip, rewind each new output against caught-up accounts, store
  matches with their derivation path + a derived lock_height (coinbase
  maturity = 1440)
- spend reconcile: mark any stored-unspent commit the node no longer
  lists (grin has no per-block inputs; spends = absence from the set)
- reorg: detect via header-hash mismatch at the checkpoint height,
  roll back a bounded depth, reseek from the fork
- backfill: bring a newly-registered account up from its birthday index
- cursor only advances after discover AND reconcile succeed
DB: chain_cursor gains output_mmr_index (tip height/hash become the
reorg checkpoint); new helpers (list_accounts, all_unspent_commits,
mark_unspent, account_unlocked_totals, scan-height advance/clamp).
Read path: get_balance adds `unlocked` (spendable-now) and
get_unspent_outs flags per-output `spendable`, so immature coinbase /
locked outputs are never presented as spendable.
2026-07-09 13:06:17 -04:00
..