Transaction Hash:
0x63ce905c6cfafacc8cbcd57a48cda14dcda8655e66cda289c25c9cea9d231809
Timestamp:
42 hrs ago (Mar-11-2025 06:13:11 PM UTC )
Gas Price:
55 Gwei (0. 000000055 S)
Gas Limit & Usage by Txn:
2,509,124
|
2,509,124 (100%)
Burnt Fees:
🔥 Burnt: 0. 13800182 S
Other Attributes:
Txn Type: 0 (Legacy)
Nonce: 344
Position In Block: 0
Input Data:
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
More Details:
Click to show more
Click to show less
Private Note:
To access the
Private Note feature, you must be
Logged In
Type Trace Address
From
To
Value
Gas Limit
AA Txn Hash
Method
Position
From
Internal Txns
Token Txns
NFT Txns
Txn Fee (ETH)
Gas Limit
Transaction Receipt Event Logs
A transaction is a cryptographically signed instruction that changes the blockchain state. Block explorers track the details of all transactions in the network. Learn more about transactions in our Knowledge Base .