{
 "format": 1,
 "label": "Scott.IA",
 "fips": 19163,
 "epoch": 2,
 "month": "2026-10",
 "merkle_root": "6639d4c50f8698caddb8f952a7e36daa790daa73d1ade2d2ceb64cd8709c59ef",
 "pda": "Ef2s51AQC12yTbih6neAjg9dCmGDZvb67Lgvp2jAmYBS",
 "program": "7mi96nPvP6SB1eApAd7vN2uUEBDvNR9xVvLqPDt3uvwg",
 "packet_file": "Scott.IA.2.2026-10.csv",
 "packet_sha256": "42995f793d3297cfec31e000d44da7dbe3fe815f5520f2f77aba8ebad9766f55",
 "n_parcels": 75452,
 "chunk_size": 2048,
 "n_chunks": 37,
 "n_shards": 51,
 "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": 13,
 "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."
}