qntx/erc8004-events

ERC-8004 On-Chain Events

Raw event logs from ERC-8004 Identity and Reputation Registry contracts, archived across all mainnet deployments.

ERC-8004 is an on-chain agent identity and reputation standard. This dataset captures every IdentityRegistered, ReputationUpdated, and related event emitted since each chain's contract deployment.

Dataset Structure

Data is organized by EIP-155 chain ID:

<chain_id>/
  identity.parquet    # IdentityRegistry events
  reputation.parquet  # ReputationRegistry events
  cursor.json         # Sync cursor (last synced block)

Covered Chains

Chain ID	Network	Identity Contract	Reputation Contract
1	Ethereum	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
10	Optimism	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
56	BNB Smart Chain	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
100	Gnosis	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
137	Polygon	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
143	Monad	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
2741	Abstract	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
4326	MegaETH	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
5000	Mantle	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
8453	Base	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
42161	Arbitrum One	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
42220	Celo	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
43114	Avalanche C	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
59144	Linea	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
167000	Taiko	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63
534352	Scroll	0x8004A169FB4a3325136EB29fA0ceB6D2e539a432	0x8004BAa17C55a88189AE136b182e5fdA19dE9b63

Parquet Schema

block_number    uint64   — Block in which the event was emitted
tx_hash         string   — Transaction hash (0x-prefixed)
log_index       uint32   — Log index within the transaction
address         string   — Contract address that emitted the event
topic0          string   — Event signature hash
topic1          string   — First indexed parameter (if any)
topic2          string   — Second indexed parameter (if any)
topic3          string   — Third indexed parameter (if any)
data            string   — ABI-encoded non-indexed parameters

Usage

import pandas as pd

# Load identity events for Base (chain 8453)
df = pd.read_parquet("hf://datasets/qntx/erc8004-events/8453/identity.parquet")
print(df.head())

from datasets import load_dataset

ds = load_dataset("qntx/erc8004-events", data_files="8453/identity.parquet")

Updates

This dataset is refreshed every 15 minutes via an automated sync pipeline (source). Each run performs an incremental sync from the last cursor block to the current chain tip across all 16 networks in parallel.

Source

• Contracts: erc-8004/erc-8004-contracts
• Sync tool: qntx/erc8004
• Standard: ERC-8004 — On-chain Agent Identity & Reputation