Use descriptive folders and update dataset card paths

README.md

@@ -1,78 +1,101 @@
 ---
 license: odc-by
-pretty_name: "Ethereum pending transactions, dwell times and drops"
+pretty_name: Ethereum pending-transaction activity and lifecycle observations
 tags:
-  - mempool
-  - ethereum
-  - transactions
-  - blockchain
-  - time-series
+- mempool
+- ethereum
+- transactions
+- blockchain
+- time-series
 task_categories:
-  - time-series-forecasting
+- time-series-forecasting
 size_categories:
-  - 1M<n<10M
+- 1M<n<10M
+configs:
+- config_name: ethereum_mempool_minute_summary
+  data_files:
+  - split: train
+    path: ethereum_mempool_minute_summary/**/*.parquet
+  default: true
+- config_name: ethereum_dropped_transactions
+  data_files:
+  - split: train
+    path: ethereum_dropped_transactions/**/*.parquet
+- config_name: ethereum_transaction_lifecycle
+  data_files:
+  - split: train
+    path: ethereum_transaction_lifecycle/**/*.parquet
+- config_name: ethereum_mempool_comparison
+  data_files:
+  - split: train
+    path: ethereum_mempool_comparison/**/*.parquet
+- config_name: collection_runs
+  data_files:
+  - split: train
+    path: collection_runs/**/*.parquet
 ---
 
-# Ethereum mempool
+# Ethereum mempool observations
 
-Transactions seen pending on Ethereum: how long they waited, and which of them were never mined
-at all.
+Ethereum pending-transaction activity, lifecycle observations and comparisons between provider views. The continuing panels contain minute-level summaries, transactions classified as dropped and differences between observed pending sets.
 
 ## Contents
 
-| name | one row is |
+| Table | Record |
 |---|---|
-| `e1_mempool_minutely` | one minute of pending-set activity |
-| `e1_mempool_dropped` | a transaction seen pending that never reached a block |
-| `e1_mempool_lifecycle` | a transaction seen pending, per transaction (ends 2026-08-26, see below) |
-| `e3_mempool_divergence` | one comparison of pending sets across several independent views |
+| `ethereum_mempool_minute_summary` | A minute of pending-transaction activity |
+| `ethereum_dropped_transactions` | A transaction classified as dropped during observation |
+| `ethereum_transaction_lifecycle` | A transaction lifecycle record; this series ends on 2026-08-26 |
+| `ethereum_mempool_comparison` | A comparison of pending sets from several providers |
 
-## Read this before you use it
+## Using the data
 
-The Flashbots Mempool Dumpster publishes the same measurement daily under CC-0, from a wider
-node set and with a longer history. For most Ethereum questions theirs is the better source and
-you should use it.
+Use the minute-level table for aggregate activity and the divergence table to assess differences between observed mempools. General per-transaction lifecycle collection ended on 2026-08-26; the minute-level and dropped-transaction panels continued.
 
-What this adds is a SECOND, independent observer. A dwell time is only meaningful against
-somebody else's dwell time, and `e3_mempool_divergence` exists to size how much two views of the
-pending set actually disagree. If you are checking a result against another source rather than
-looking for the deepest single feed, that is what this is for.
+For a separate source of Ethereum mempool observations, see the [Flashbots Mempool Dumpster](https://github.com/flashbots/mempool-dumpster). Measurements from different observers may differ because of connectivity, transaction visibility and collection methods.
 
-`e1_mempool_lifecycle` stops at 2026-08-26. Per-transaction rows were discontinued there for
-exactly the reason above: duplicating a freely available measurement was not worth the storage it
-took. `e1_mempool_minutely` and `e1_mempool_dropped` continue, and the dropped rows are the part
-with no free equivalent, because a transaction that is never mined leaves no on-chain record.
+## Limitations
 
-## Before you build on this
+- A mempool is local to a node. These observations do not cover all public or private transaction flow.
+- A dropped classification requires absence from the observed pending views and a chain check after a debounce period. It describes the collector's observation window, not a guarantee that the transaction can never be mined or rebroadcast.
+- Timestamps reflect the collector's observations and include polling and network delays.
+- Minute-level summaries cannot recover individual transaction paths. Check the available dates before selecting a table for transaction-level work.
 
-- Pending sets are node-local. What one view holds is not what the network holds, and retention
-  is a configuration choice rather than a protocol rule.
-- `dropped` means confirmed absent from the chain, absent from every pending view held, and still
-  absent after a debounce period. It is never inferred from a single observation.
-- Timestamps are ours, taken at observation. They are not consensus timestamps and carry our
-  network distance to whatever served the data.
-- The minutely table is an aggregate by construction. If you need per-transaction Ethereum rows
-  for a date after 2026-08-26, the Dumpster has them and this does not.
+## Files and access
 
-Partitions are parquet, one file per collection window, under `dataset/YYYY/MM/`. Every dataset here carries a FIXED 7-day sample WINDOW starting at its own first day of collection, together spanning 2026-08-25 to 2026-09-01, so you can check schema, coverage and quality before asking for more. It does not advance, so there is nothing to gain by re-downloading it. The full history is held privately, available on request.
+Data is stored as Parquet files under `table_name/YYYY/MM/`, with partitions for collection windows. Each measurement table has a fixed 7-day sample beginning at its configured collection start date. The sample windows in this repository span 2026-08-25 to 2026-09-01. Availability within each window depends on successful collection. The public sample dates remain fixed as additional history accumulates privately. Contact DataForge through the discussions tab to enquire about additional history.
+
+### Load a table
+
+Install `datasets` and `pandas` to run this example. The `train` split contains all observations in the selected table; it is not a predefined modelling split.
 
 ```python
-from huggingface_hub import snapshot_download
-import pandas as pd, glob
+from datasets import load_dataset
 
-path = snapshot_download("dataforge-labs/ethereum-mempool", repo_type="dataset",
-                         allow_patterns="e1_mempool_minutely/**")
-df = pd.concat(map(pd.read_parquet,
-                   glob.glob(f"{path}/e1_mempool_minutely/**/*.parquet", recursive=True)))
+data = load_dataset("dataforge-labs/ethereum-mempool",
+                    "ethereum_mempool_minute_summary", split="train")
+df = data.to_pandas()
 ```
 
 ## Coverage
 
-`e0_run_manifest` lists every collection window with its poll counts and failure counts, and is
-published in full rather than windowed. Gaps between windows are real, cannot be filled in
-afterwards, and nothing here is interpolated.
+`collection_runs` records collection windows, poll counts and failures. It is published in full and may cover dates beyond the fixed data sample. Collection gaps are not interpolated. Use this table together with measurement timestamps and error fields to assess coverage.
 
 ## License and contact
 
-ODC-BY: use it freely, credit "DataForge (dataforge-labs)". Questions and requests for the full
-history via the discussions tab.
+The public sample is published under ODC-BY. Attribute it to "DataForge (dataforge-labs)". For questions about the data or access to additional history, open a discussion in this repository.
+
+<details>
+<summary>Earlier file paths</summary>
+
+Each table is stored under a directory with the same descriptive name. The file contents and date partitions are unchanged. Scripts using an earlier directory name should use the corresponding table name below, or pin downloads to revision `before-folder-rename-20260915` to access the original layout. Internal collector IDs are retained in the private archive and may appear in raw coverage records.
+
+| Current table and directory | Earlier directory |
+|---|---|
+| `ethereum_mempool_minute_summary` | `e1_mempool_minutely/` |
+| `ethereum_dropped_transactions` | `e1_mempool_dropped/` |
+| `ethereum_transaction_lifecycle` | `e1_mempool_lifecycle/` |
+| `ethereum_mempool_comparison` | `e3_mempool_divergence/` |
+| `collection_runs` | `e0_run_manifest/` |
+
+</details>

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