Arbitrum One Data Schema
Arbitrum One datasets provide comprehensive Layer 2 on-chain data including blocks, transactions, logs (events), and traces (internal transactions). All data is indexed and queryable through Portal or v2 archives.Available Data Types
Blocks
Blocks
Block headers contain metadata about each block in the Arbitrum One chain.
| Field Name | Data Type | Description |
|---|---|---|
number | integer | Block number |
hash | string | Block hash |
timestamp | integer | Block timestamp (Unix) |
parentHash | string | Parent block hash |
gasUsed | bigint | Total gas used in block |
gasLimit | bigint | Block gas limit |
Transactions
Transactions
Transaction data includes all executed transactions with their execution details.
| Field Name | Data Type | Description |
|---|---|---|
hash | string | Transaction hash |
from | address | Sender address |
to | address | Recipient address |
value | bigint | Transaction value in wei |
gasUsed | bigint | Gas used by transaction |
gasPrice | bigint | Gas price in wei |
input | bytes | Transaction input data |
nonce | integer | Transaction nonce |
status | integer | Transaction status (1 = success, 0 = failure) |
Logs
Logs
Event logs emitted by smart contracts during transaction execution.
| Field Name | Data Type | Description |
|---|---|---|
address | address | Contract address that emitted the log |
topics | array | Indexed event topics (up to 4) |
data | bytes | Non-indexed event data |
logIndex | integer | Log index in the block |
transactionIndex | integer | Index of parent transaction |
transactionHash | string | Hash of parent transaction |
Traces
Traces
Internal transactions and call traces showing execution flow within transactions.
| Field Name | Data Type | Description |
|---|---|---|
transactionIndex | integer | Index of parent transaction |
type | string | Trace type (call, create, suicide, reward) |
from | address | Trace originator address |
to | address | Trace destination address |
value | bigint | Value transferred |
gas | bigint | Gas provided |
gasUsed | bigint | Gas actually used |
input | bytes | Input data |
output | bytes | Output data |