docs: clarify verified publication scope

README.md

@@ -27,7 +27,7 @@ dataset's terms.
 - Exact interval samples: `469,907,459`
 - Canonical assets: `82,701,705`
 - Parquet shards: `3,292`
-- Parquet payload: `41,557,148,598` bytes (38.70 GiB)
+- Parquet-only payload: `41,557,148,598` bytes (38.70 GiB)
 
 The manifest combines the 11 currently materialized metadata sources: COIN,
 DROID, EPIC-KITCHENS-100, HD-VILA-100M, HowTo100M ID recovery (unattested ID
@@ -134,10 +134,11 @@ dataset membership.
 
 Data commit `e3b4f02a422f760995406a0b8e1221e3882ec7d7` is the immutable revision for
 this release. The upload was checked as 3,294 data objects totaling
-41,557,605,260 bytes: 3,292 Parquet shards plus `manifest.json` and
-`CURRENT.json`. Every local object size and SHA-256 matched its remote Hub
-object, and pinned streaming loads were exercised for `samples`, `assets`, and
-`memberships`.
+41,557,605,260 bytes including the two JSON files: 3,292 Parquet shards plus
+`manifest.json` and `CURRENT.json`. Every local object size and SHA-256 matched
+its remote Hub object. Pinned streaming loads each returned a row from one
+representative `samples` shard, one `assets` shard, and one `memberships`
+partition.
 
 ## Media smoke status