Guide
How to Read a Block Explorer: Verify On-Chain Data Yourself
Bottom line: check any transaction with your own eyes
A block explorer is a free public tool to search and view transactions, balances and contracts on a blockchain. The best-known are Etherscan for Ethereum and mempool.space for Bitcoin. "Did my transfer arrive? What did I pay?" — you can answer these yourself, instead of waiting on an exchange's support.
Key points
- A blockchain is a public ledger; every transaction is visible to anyone
- Paste a transaction hash (TxID) to see everything about it
- Reading six fields — Status / From / To / Value / Gas / Confirmations — is enough
- Most "it hasn't arrived" worries can be resolved here yourself
Start here: the transaction hash
When you send funds, your wallet or exchange gives you a 66-character string starting with 0x (the transaction hash, or TxID). It's the tracking number for that transaction. Paste it into Etherscan's search box to open the transaction's detail page. Paste an address (0x + 40 chars) and you'll see its balance and full history.
Six fields to read on a transaction page
| Field | Meaning | What to look for |
|---|---|---|
| Status | State | Green Success = done. Red Fail = failed (gas still spent). Pending = waiting |
| From / To | Sender / recipient | If To is a contract, Etherscan adds a "Contract" tag |
| Value | Amount sent | The actual ETH (etc.) that moved |
| Transaction Fee | Fee | Total gas you paid |
| Gas Used | Gas consumed | The actual computation used |
| Block / Confirmations | Finality | Blocks stacked on top; more = harder to reverse |
Confirmations = "how settled is it?"
A transaction is settled when it's included in a block, and each block stacked on top makes it harder to reverse — these are confirmations. A few confirmations are considered enough for small amounts, while exchanges typically wait for more on large deposits. If "it isn't showing in my exchange yet," it may simply not have reached the required number of confirmations.
When this is useful (real examples)
- A transfer seems missing: if Status is Success and confirmations are stacking, it's done on-chain — you're just waiting on the exchange to credit it
- Check the fee: Transaction Fee shows exactly what you paid
- Verify the counterparty: enter an address to see whether funds really moved
- See a token's holders: a token's Holders tab can reveal an extremely concentrated supply — a tokenomics red flag
"Public" is not "anonymous"
Every transaction is public. Once an address is linked to a real identity, all of its past activity can be traced. Treat addresses as pseudonymous, not anonymous.
FAQ
Q. Will my name or address appear? A. No. Only the address (0x…) and the transaction details are shown — but anyone can view them.
Q. Status was Fail. Do I get the fee back? A. No. Even a failed transaction spends gas. The Value you tried to send usually does not move.
Sources
- Etherscan (official block explorer): https://etherscan.io/
- Etherscan docs: https://docs.etherscan.io/
- ethereum.org, "Transactions": https://ethereum.org/en/developers/docs/transactions/
Next, read about gas fees and how to make a wallet.
Not financial advice
This article is for information only and is not investment advice. Crypto assets are volatile and carry risks including hacking. Do your own research and only use money you can afford to lose. Based on public information as of June 2026.
This article is informational only and is not financial, investment, or trading advice. Prices are reference snapshots and may be outdated. Always do your own research.