Refresh DEX swaps timestamps and dataset card

README.md

@@ -4,11 +4,14 @@ pretty_name: Chainticks DEX Swaps
 tags:
 - finance
 - crypto
+- data-analysis
 - parquet
 - duckdb
 - pandas
 - polars
 - agent-friendly
+task_categories:
+- tabular-regression
 configs:
 - config_name: default
   data_files:
@@ -20,6 +23,13 @@ configs:
 
 Normalized DEX swap events decoded from public EVM chain logs.
 
+## Current Scope
+
+- **Coverage:** Ethereum Uniswap pool swap events captured by the Chainticks public-chain collector.
+- **Best for:** DEX flow inspection, venue-aware liquidity studies, and joining on-chain swap activity with perp/order-flow features.
+- **Cadence:** append-only partitions, normally refreshed by the Chainticks nightly publisher.
+- **Timestamps:** UTC ISO-8601 strings when available. Null timestamp fields mean the source event did not include a timestamp at collection time.
+
 ```python
 import pandas as pd
 
@@ -42,6 +52,10 @@ LATEST_DATE.txt
 
 Rows must have `source_kind` in `['on_chain_event']`. Chainticks does not publish venue REST/API resale data in this dataset.
 
+## Known Limitations
+
+Bootstrap coverage is intentionally narrow while collectors are hardened. Rows are event facts, not full pool state snapshots.
+
 ## Agent Prompt Snippet
 
 Use this dataset as append-only market context. Read `LATEST_DATE.txt`, inspect `_schema.json`, then load the relevant Parquet partition. Treat timestamps as UTC and preserve `source_kind` in downstream analysis.

_manifest.json

@@ -3,18 +3,18 @@
   "files": [
     "swaps/date=2026-05-11/part-0000.parquet"
   ],
-  "generated_at": "2026-05-11T09:41:24.996892+00:00",
+  "generated_at": "2026-05-11T12:08:44.656783+00:00",
   "public_source_kinds": [
     "on_chain_event"
   ],
   "repo_id": "Chainticks/dex-swaps",
   "row_counts": {
-    "swaps/2026-05-11": 80
+    "swaps/2026-05-11": 212
   },
   "time_ranges": {
     "swaps/2026-05-11": {
-      "end": null,
-      "start": null,
+      "end": "2026-05-11T08:57:23Z",
+      "start": "2026-05-11T08:37:23Z",
       "timezone": "UTC"
     }
   }

swaps/date=2026-05-11/part-0000.parquet

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
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-size 24537
+oid sha256:7ff051e01f665370b2a90fce8ca4d0d83c938b28c1e77bdaeef18bd9dfe070fb
+size 43754