{
 "format": 1,
 "label": "Collin.TX",
 "fips": 48085,
 "epoch": 1,
 "month": "2026-10",
 "merkle_root": "620f4a875f44782195320e75778a9cdd42d7d9084a2f1c321e5b1cfb1cb3f482",
 "pda": "EDPYeWPi3xiNy1V2ftbfPRVxJJX936gyeoDzEEi4Sj9n",
 "program": "7mi96nPvP6SB1eApAd7vN2uUEBDvNR9xVvLqPDt3uvwg",
 "packet_file": "Collin.TX.1.2026-10.csv",
 "packet_sha256": "27e4b0ba06b6e2bd02c47d83013c56f55820fed7be11dd56763656239f000631",
 "n_parcels": 387334,
 "chunk_size": 2048,
 "n_chunks": 190,
 "n_shards": 259,
 "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": 1,
 "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."
}