{
 "format": 1,
 "label": "Dallas.TX",
 "fips": 48113,
 "epoch": 1,
 "month": "2026-10",
 "merkle_root": "6dd2643ebb7849157779d3f0c4c6448f1f1dac9c37afdca0ce428eb87d4f0fb6",
 "pda": "5v8WeMojnHZwLS15XM7ixPNqSAQuZNhCJKR2JAGb9At1",
 "program": "7mi96nPvP6SB1eApAd7vN2uUEBDvNR9xVvLqPDt3uvwg",
 "packet_file": "Dallas.TX.1.2026-10.csv",
 "packet_sha256": "d7ea0e429ce9fe912e82295c14b1ddb634ccb161d3563ef9da8bab48900c63e0",
 "n_parcels": 696602,
 "chunk_size": 2048,
 "n_chunks": 341,
 "n_shards": 465,
 "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": 150,
 "alias_types": [],
 "has_prefix": true,
 "prefix_len": 5,
 "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."
}