Traces
Traces keep track of the actions that modify the internal state of the EVM.
Typically, trace_id for traces are unique, unless there are duplicate transactions on the blockchain.
Refer to Traces ID and Address for more information and examples.
Table Columns
The example used is a USDT Transfer Event to OKX.
| Column Name | Description | Example |
|---|---|---|
transaction_hash | Unique identifier of the transaction that contains this trace. | 0xc2a819147587c9ec17ebdfc7acf75c60c095d07450482f2578f35cf449990ee0 |
transaction_index | The position of this transaction in the block that it belongs to. The first transaction has index 0. | 50 |
from_address | The address of the sending party of this trace. | 0xc2132d05d31c914a87c6611c10748aeb04b58e8f |
to_address | The address of the receiving party of this trace (null for contract creation). | 0x7ffb3d637014488b63fb9858e279385685afc1e2 |
value | The amount of ether moved from the from_address to to_address. | |
input | The bytecode of the call that is made to another smart contract. | 0xa9059cbb00000000000000000000000006959153b974d0d5fdfd87d561db6d8d4fa0bb0b000000000000000000000000000000000000000000000000000000003507b4e3 |
output | The bytecode answer the smart contract that was called gives back. | 0x0000000000000000000000000000000000000000000000000000000000000001 |
trace_type | The value of the method such as call, create, create2, suicide. | call |
call_type | The type of method such as call, delegatecall, staticcall. Learn more here. | delegatecall |
reward_type | Populated when trace_type =reward. Possible values: block, uncle | |
gas | Gas provided with the trace call, in wei. | 115,689 |
gas_used | The amount of gas consumed, in wei. | 13,238 |
subtraces | Number of children traces. | 0 |
trace_address | The address of the trace within the call graph. More detail to come soon. | 0 |
error | Human readable developer error message. Examples: "Out of gas", "Reverted", "Bad instruction", "Bad jump destination" |
|
status | Success status of the trace. Either 1 (success) or 0 (failure). | 1 |
block_timestamp | The time when the block that contains this trace was included on the blockchain. | 2023-06-24 05:50:04 |
block_number | The length of the chain, in blocks. | 44,271,890 |
block_hash | Unique identifier of the block that includes this trace. | 0xb61b3d40d37be1ef85348fce8d31414e4b7902a3e64df5f9c8152962024cff2f |
trace_id | Unique identifier for this trace. Generated by combining the trace_type, transaction_hash and trace_address. | call_0xc2a819147587c9ec17ebdfc7acf75c60c095d07450482f2578f35cf449990ee0_0 |
selector | Selector of the txn. | 0xa9059cbb |
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