{
 "format": 1,
 "label": "Multnomah.OR",
 "fips": 41051,
 "epoch": 1,
 "month": "2026-10",
 "merkle_root": "4a248cd7a402529925c7c35acc8df7866a5ef0acdb5c0553889db4e0ac3ca738",
 "pda": "3irVqBAmzECUAwLM4GUrexn51FDUeKjK4pzJSv2pQdeZ",
 "program": "7mi96nPvP6SB1eApAd7vN2uUEBDvNR9xVvLqPDt3uvwg",
 "packet_file": "Multnomah.OR.1.2026-10.csv",
 "packet_sha256": "48a15cc0a5a258848288f86f4eb91f7a76c38391b586ffc38044eba81a2b3a9f",
 "n_parcels": 283139,
 "chunk_size": 2048,
 "n_chunks": 139,
 "n_shards": 189,
 "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": 144,
 "alias_types": [],
 "has_prefix": true,
 "prefix_len": 8,
 "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."
}