Add latest date pointer for Chainticks dataset

LATEST_DATE.txt

@@ -0,0 +1 @@
+2026-05-10

README.md

@@ -48,6 +48,7 @@ hyperliquid_chain/
   liquidations/date=YYYY-MM-DD/part-0000.parquet
 _schema.json
 _manifest.json
+LATEST_DATE.txt
 ```
 
 ## Quickstart
@@ -105,6 +106,7 @@ https://huggingface.co/datasets/Chainticks/perp-data/resolve/main/<provider>/<da
 Valid provider for v1: hyperliquid_chain.
 Valid datasets: funding, trades, markets, open_interest, liquidations.
 Large dates may have multiple part-*.parquet files. Read _schema.json before generating queries. Read _manifest.json for available files, row counts, and UTC time ranges.
+Read LATEST_DATE.txt for the newest published UTC partition.
 Only treat rows as public-source eligible when source_kind is one of: on_chain_event, chain_rpc, hypercore_s3.
 ```
 
@@ -112,6 +114,7 @@ Only treat rows as public-source eligible when source_kind is one of: on_chain_e
 
 - Schema sidecar: `_schema.json`
 - Manifest sidecar: `_manifest.json`
+- Latest partition pointer: `LATEST_DATE.txt`
 - Croissant metadata: `https://huggingface.co/api/datasets/Chainticks/perp-data/croissant`
 
 Chainticks is independent and is not affiliated with, endorsed by, or sponsored by Hyperliquid Labs or any protocol whose data appears here. Protocol names are used descriptively.

_manifest.json

@@ -29,7 +29,7 @@
     "hyperliquid_chain/trades/date=2026-05-09/part-0023.parquet",
     "hyperliquid_chain/trades/date=2026-05-10/part-0000.parquet"
   ],
-  "generated_at": "2026-05-10T13:50:48.102519+00:00",
+  "generated_at": "2026-05-10T19:30:13.498694+00:00",
   "public_source_kinds": [
     "chain_rpc",
     "hypercore_s3",
@@ -43,7 +43,7 @@
     "hyperliquid_chain/trades/2026-05-10": 206757
   },
   "source_roots": [
-    "data/perps/hyperliquid_chain"
+    "/var/folders/f9/3fbp168d0w35t88c0n0674r00000gq/T/tmp.7HYTxbKcgg/input/hyperliquid_chain"
   ],
   "time_ranges": {
     "hyperliquid_chain/liquidations/2026-05-09": {