{
 "format": 1,
 "label": "DuPage.IL",
 "fips": 17043,
 "epoch": 1,
 "month": "2026-10",
 "merkle_root": "1ab46f32f335e844c74e8c866ef5f017f3932a0e9f9a7869bd69d5e009834206",
 "pda": "HgPY1HpFS3iAp1ozvcmxHgLX8wKHrXtA479j85VFtkF4",
 "program": "7mi96nPvP6SB1eApAd7vN2uUEBDvNR9xVvLqPDt3uvwg",
 "packet_file": "DuPage.IL.1.2026-10.csv",
 "packet_sha256": "2b5d321e73b0e79b50e05a788fc82fe6c0662a1381ccc5340b0e9c044031bae9",
 "n_parcels": 336922,
 "chunk_size": 2048,
 "n_chunks": 165,
 "n_shards": 225,
 "leaf": "sha256(utf8 parcel_id|acres_6dp|lot_sqft_2dp)",
 "tree": "sha256(left||right); odd level duplicates the last node",
 "shard_key": "sha256(utf8(upper(trim(parcel_id))))[0..4] big-endian u32 mod n_shards",
 "note": "Untrusted layout file. Verify against the on-chain CountyRoot account, not against this file.",
 "n_xshards": 133,
 "alias_types": [],
 "has_prefix": true,
 "prefix_len": 3,
 "lookup_note": "x/ and p/ are lookup aids (normalized IDs, county aliases, suggestions). They are not part of the leaf or the on-chain root."
}