Clarify immutable dataset selection in reproducible tooling examples

README.md

@@ -84,13 +84,14 @@ reference = task["reference"]
 ```
 
 Browser Eval uses the shared immutable dataset cache and
-[data lock](https://github.com/lexmount/browser-eval/blob/6fc16853454451146d93cb30666b9238a7105971/src/harness/benchmarks/data-lock.json):
+[data lock](https://github.com/lexmount/browser-eval/blob/dc645932071d1e2d893138c9add77cd3f1eb3734/src/harness/benchmarks/data-lock.json):
 
 ```sh
 git clone https://github.com/lexmount/browser-eval
 cd browser-eval
-git checkout 6fc16853454451146d93cb30666b9238a7105971
+git checkout dc645932071d1e2d893138c9add77cd3f1eb3734
 uv sync --frozen --extra web-scraper-eval
+make pin-dataset DATASET=web-scraper REV=YOUR_FULL_HF_COMMIT
 uv run --frozen python -m harness.benchmarks.data web-scraper
 uv run --frozen python -m harness.web_scraper.cli prepare
 ```
@@ -112,7 +113,7 @@ Record latency for every logical result, physical retry time separately, and
 native usage or actual charges where available. API tiers, input limits and
 billing units differ. This dataset defines extraction inputs and references;
 it contains no vendor ranking. Browser Eval's
-[execution guide](https://github.com/lexmount/browser-eval/blob/6fc16853454451146d93cb30666b9238a7105971/examples/web_scraper/README.md)
+[execution guide](https://github.com/lexmount/browser-eval/blob/dc645932071d1e2d893138c9add77cd3f1eb3734/examples/web_scraper/README.md)
 describes native HTML/URL routes and certification.
 
 ## License, attribution and revisions
@@ -127,7 +128,7 @@ rights to reuse every captured page for model training.
 
 Cite the upstream [product-extraction benchmark](https://github.com/scrapinghub/product-extraction-benchmark)
 and identify this dataset's full commit and reference view. For tooling, cite
-[Browser Eval](https://github.com/lexmount/browser-eval/blob/6fc16853454451146d93cb30666b9238a7105971/CITATION.cff).
+[Browser Eval](https://github.com/lexmount/browser-eval/blob/dc645932071d1e2d893138c9add77cd3f1eb3734/CITATION.cff).
 [VERSIONING.md](VERSIONING.md) describes changes to inputs, references and packaging.
 No moving branch name identifies an evaluated edition.
 

manifest.json

@@ -645,7 +645,7 @@
   "source_revision": "22272f68f973218f43b09a588c37864b0e8a0a19",
   "tooling": {
     "repository": "https://github.com/lexmount/browser-eval",
-    "revision": "6fc16853454451146d93cb30666b9238a7105971"
+    "revision": "dc645932071d1e2d893138c9add77cd3f1eb3734"
   },
   "track": "web-scraper",
   "viewer": {