Include data in both binary and hex formats

README.md

@@ -1,10 +1,14 @@
 ---
 license: agpl-3.0
 configs:
-- config_name: ethereum
+- config_name: hex/ethereum
   data_files:
   - split: train
-    path: "data/ethereum/train/*.parquet"
+    path: "hex/ethereum/train/*.parquet"
+- config_name: bin/ethereum
+  data_files:
+  - split: train
+    path: "bin/ethereum/train/*.parquet"
 ---
 
 # EVM Contracts
@@ -20,13 +24,14 @@ When available, the sources are also included.
 
 > the dataset is not yet complete!
 
-- homepage: [https://github.com/apehex/feedblocks][github-project]
+- homepage: [https://github.com/apehex/feedblocks][github-feedblocks]
 - version: 0.1.9
 - download size: 2.1 GB
 
-| Split         | Samples   | Blocks                    | Scraped sources                   |
-| ------------- | --------- | ------------------------- | --------------------------------- |
-| 'ethereum'    | 1,294,247 | 19,493,000 - 20,292,000   | 19,493,000 - 19,959,999 (58%)     |
+| Split             | Samples   | Blocks                    | Scraped sources                   |
+| ----------------- | --------- | ------------------------- | --------------------------------- |
+| 'bin/ethereum'    | 1,294,247 | 19,493,000 - 20,292,000   | 19,493,000 - 19,959,999 (58%)     |
+| 'hex/ethereum'    | 1,294,247 | 19,493,000 - 20,292,000   | 19,493,000 - 19,959,999 (58%)     |
 
 The transaction data is available for all records, in particular creation and runtime bytecodes are filled.
 
@@ -35,8 +40,31 @@ These have a small rate limit and it takes a long time.
 
 So the source code data has only been scraped for a portion of the records, as listed in the table above.
 
+This data was collected by the [scripts of a dedicated package, feedblocks][github-feedblocks].
+
 ## Features
 
+The data comes in two flavors: binary and hexadecimal encodings.
+The fields have the same names in both and the underlying data is also identical.
+
+In binary form, the raw bytes are stored in most fields:
+
+```python
+datasets.Features({
+    "chain_id": datasets.features.Value(dtype='uint64'),
+    "block_number": datasets.features.Value(dtype='uint32'),
+    'block_hash': datasets.features.Value(dtype='large_binary'),
+    'transaction_hash': datasets.features.Value(dtype='large_binary'),
+    'deployer_address': datasets.features.Value(dtype='large_binary'),
+    'factory_address': datasets.features.Value(dtype='large_binary'),
+    'contract_address': datasets.features.Value(dtype='large_binary'),
+    'creation_bytecode': datasets.features.Value(dtype='large_binary'),
+    'runtime_bytecode': datasets.features.Value(dtype='large_binary'),
+    'creation_sourcecode': datasets.features.Value(dtype='large_binary'),})
+```
+
+While in hexadecimal format, the data is encoded into HEX strings:
+
 ```python
 datasets.Features({
     "chain_id": datasets.features.Value(dtype='uint64'),
@@ -51,9 +79,9 @@ datasets.Features({
     'creation_sourcecode': datasets.features.Value(dtype='string'),})
 ```
 
-### Block Number
+### Chain And Block Numbers
 
-The block number is the only integer feature.
+Both ids are stored as unsigned integers.
 
 ### Solidity Sources
 
@@ -64,7 +92,7 @@ The sources are formatted as [standard JSON input][solidity-docs-json] for the s
 
 The resulting JSON is then encoded using UTF-8 into a single string.
 
-### HEX Data
+### HEX Dataset
 
 All the other features are HEX encoded into strings, **without** the `0x` prefix.
 
@@ -84,27 +112,27 @@ For example:
     'solidity_sourcecode': '',}
 ```
 
-## Raw Data
+## BIN Dataset
 
-The original data is stored in parquet files, and typed as raw bytes:
+All the other features are stored in binary format:
 
 ```python
-pa.schema(fields=[
-    pl.field('chain_id', pa.uint64()),
-    pl.field('block_number', pa.uint32()),
-    pl.field('block_hash', pa.large_binary()),
-    pl.field('transaction_hash', pa.large_binary()),
-    pl.field('deployer_address', pa.large_binary()),
-    pl.field('factory_address', pa.large_binary()),
-    pl.field('contract_address', pa.large_binary()),
-    pl.field('creation_bytecode', pa.large_binary()),
-    pl.field('runtime_bytecode', pa.large_binary()),
-    pl.field('creation_sourcecode', pa.large_binary()),])
+{
+    'chain_id': 1,
+    'block_number': 20155815,
+    'block_hash': b'\xfc\xdd\xf3;\x1bZr\x8a@X\x8e\xda`&&9 \x1a\xc0\xd3\xf6\x11\xf0\x82\x86\xa9\xe2\xefeWa\x11',
+    'transaction_hash': b'\xec7#\xff\xb8\xa3\xbb\xb8\xb8;%H\x1fa\xcb\xfcF8?\xc8\x8f\xf8\xeb6A\x86\xb5:\xa2&\xe4\xbf',
+    'deployer_address': b'\xbaW\xab\xe3u\x9088\xb5\xc1\x97\t\xe9m\xae\x12\x19\x1f\xa3~',
+    'factory_address': b'\x00\x00\x00\x00\x00\xb3\xf8y\xcb0\xfe$;M\xfe\xe48i\x1c\x04',
+    'contract_address': b'\xc7%\xbc1\xcb\xa2LS\xe5\xc0\xc2\xe2\x06]K@\xf5#Fx',
+    'creation_bytecode': b'un\xb3\xf8y\xcb0\xfe$;M\xfe\xe48i\x1c\x043\x18XW3\xff`\x00R`\x16`\n\xf3',
+    'runtime_bytecode': b'n\xb3\xf8y\xcb0\xfe$;M\xfe\xe48i\x1c\x043\x18XW3\xff',
+    'creation_sourcecode': b''}
 ```
 
-This data is collected by the [scripts of a dedicated package, feedblocks][github-project].
+This saves disk space and may actually be more practical for further processing.
 
 [etherscan-api]: https://docs.etherscan.io/api-endpoints/contracts
-[github-project]: https://github.com/apehex/feedblocks/
+[github-feedblocks]: https://github.com/apehex/feedblocks/
 [github-tfds]: https://github.com/apehex/feedblocks/tree/main/feedblocks/datasets/evmc
 [solidity-docs-json]: https://docs.soliditylang.org/en/v0.8.26/using-the-compiler.html#compiler-input-and-output-json-description

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