---
license: agpl-3.0
configs:
- config_name: hex-ethereum
  default: true
  data_files:
  - split: train
    path: "hex/ethereum/train/*.parquet"
  - split: cleaned
    path: "hex/ethereum/cleaned/*.parquet"
- config_name: bin-ethereum
  data_files:
  - split: train
    path: "bin/ethereum/train/*.parquet"
---

# EVM Contracts

## Description

EVMC (Ethereum Virtual Machine Contracts) is a collection of smart contracts from the ETH blockchain.

In particular, each sample holds the creation and runtime bytecodes.
When available, the sources are also included.

## Metadata

- homepage: [https://github.com/apehex/feedblocks][github-feedblocks]
- version: 1.0.1

### HEX Dataset

| Config            | Split     | Size      | Samples   | Blocks                    |
| ----------------- | --------- | --------- | --------- | ------------------------- |
| 'hex-ethereum'    | 'train'   | 2.8 GB    | 1,294,247 | 19,493,000 - 20,292,000   |
| 'hex-ethereum'    | 'cleaned' | 2.0 GB    | 122,800   | 19,493,000 - 20,292,000   |

The "cleaned" split covers the same block range, but records were removed when:

- the source code is not available
- the source code matches the contract factory instead of the deployed contract

### BIN Dataset

| Config            | Split     | Size      | Samples   | Blocks                    |
| ----------------- | --------- | --------- | --------- | ------------------------- |
| 'bin-ethereum'    | 'train'   | 2.3 GB    | 1,294,247 | 19,493,000 - 20,292,000   |

## 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='uint64'),
    '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'),
    "block_number": datasets.features.Value(dtype='uint64'),
    'block_hash': datasets.features.Value(dtype='string'),
    'transaction_hash': datasets.features.Value(dtype='string'),
    'deployer_address': datasets.features.Value(dtype='string'),
    'factory_address': datasets.features.Value(dtype='string'),
    'contract_address': datasets.features.Value(dtype='string'),
    'creation_bytecode': datasets.features.Value(dtype='string'),
    'runtime_bytecode': datasets.features.Value(dtype='string'),
    'creation_sourcecode': datasets.features.Value(dtype='string'),})
```

### Chain And Block Numbers

Both ids are stored as unsigned integers.

### Solidity Sources

The sources all have open source licenses.
They were collected from block explorer APIs like [Etherscan][etherscan-api].

The sources are formatted as [standard JSON input][solidity-docs-json] for the solidity compiler.

The resulting JSON is then encoded using UTF-8 into a single string.

### HEX Dataset

All the other features are HEX encoded into strings, **without** the `0x` prefix.

For example:

```python
{
    'chain_id': 1,
    'block_number': 20155815,
    'block_hash': 'fcddf33b1b5a728a40588eda60262639201ac0d3f611f08286a9e2ef65576111',
    'transaction_hash': 'ec3723ffb8a3bbb8b83b25481f61cbfc46383fc88ff8eb364186b53aa226e4bf'
    'deployer_address': 'ba57abe375903838b5c19709e96dae12191fa37e',
    'factory_address': '0000000000b3f879cb30fe243b4dfee438691c04',
    'contract_address': 'eff10e7d4feef60ed9b9e9bb9fee12c2504bd0ba',
    'creation_bytecode': '756eb3f879cb30fe243b4dfee438691c043318585733ff6000526016600af3',
    'runtime_bytecode': '6eb3f879cb30fe243b4dfee438691c043318585733ff',
    'solidity_sourcecode': '',}
```

## BIN Dataset

All the other features are stored in binary format:

```python
{
    '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 saves disk space and may actually be more practical for further processing.

[etherscan-api]: https://docs.etherscan.io/api-endpoints/contracts
[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