How to Read a Crypto Transaction on a Block Explorer

Question from BitcoinTalk: “Someone sent me BTC but I can’t see it. How do I use a block explorer to check?”

Short answer: A block explorer shows the full life of a transaction. Enter the TXID (transaction hash) on the correct explorer (Mempool.space for Bitcoin, Etherscan for Ethereum). Check “Status” = Confirmed, “To” = your address, “Value” = correct amount. If it’s confirmed and shows your address, the crypto is in your wallet.

Anatomy of a Transaction

Every blockchain transaction has the same structure:

• Transaction Hash (TXID) — Unique identifier (like a receipt number)
• Status — Pending, Confirmed, or Failed
• Block — Which block included the transaction
• Timestamp — When it was processed
• From — The sender’s address
• To — The receiver’s address
• Value — Amount transferred
• Fee — Network fee paid by the sender

Reading a Bitcoin Transaction

On Mempool.space, a Bitcoin transaction shows:

• Inputs — Which UTXOs (unspent outputs) are being spent
• Outputs — Where the BTC is going (receiver + change back to sender)
• Fee rate — Satoshis per vbyte (higher = faster confirmation)
• Size — Transaction size in virtual bytes (larger = higher fee)
• Confirmations — How many blocks have been mined since

What to verify:

• Your address appears in one of the outputs
• The value going to your address matches the expected amount
• Status shows at least 1 confirmation

Reading an Ethereum Transaction

On Etherscan, an Ethereum transaction shows:

• Transaction Hash — Unique ID
• Status — Success or Failed
• Block — Block number (e.g., 20,123,456)
• From/To — Sender and receiver
• Value — ETH amount (in ETH or Wei)
• Gas Used — Actual gas consumed (usually 21,000 for simple transfers)
• Gas Price — Price paid per unit of gas (in Gwei)
• Transaction Fee — Gas Used × Gas Price

For ERC-20 token transfers: Check the “Token Transfer” tab — ERC-20 transfers don’t show in the main ETH value field.

Common Fields on Any Explorer

Using Explorers for Each Blockchain

How to Verify a Payment

1. Get the TXID from the sender
2. Go to the correct explorer for that blockchain
3. Paste the TXID in the search bar
4. Check: STATUS = Confirmed
5. Check: TO = your address (exact match)
6. Check: VALUE = correct amount
7. Check: CONFIRMATIONS = at least 1 (wait for 6 for high-value)

Red Flags

• Unconfirmed for hours — Check mempool congestion
• Status = Failed — Internal error, transaction didn’t process
• Wrong TO address — Confirm the address character by character
• Token transfer tab is empty — For ERC-20 tokens, check the tab specifically

Verdict

A block explorer is the most important verification tool in crypto. If you can read a transaction on the explorer, you never need to trust someone’s word that they sent payment. Always verify the TO address, the value, and the confirmation status.

Related: How to Check Transaction Status | How to Use a Blockchain Explorer | What to Do if Sent to Wrong Address

Mistakes that trips up first-time readers

The problems people hit with explorers are almost never about reading the fields — they are about context. The most common is using the wrong explorer for the wrong chain: pasting a Bitcoin TXID into Etherscan returns nothing and sparks needless panic even though the payment is fine. A second is looking only at the main value field on Ethereum and concluding a USDC payment never arrived, when the token actually appears under the separate Token Transfer tab. A third is treating an unconfirmed transaction as lost. A transaction that shows as pending is simply waiting in the mempool, often because the fee rate is too low for current congestion; it has not failed and usually confirms shortly. The fourth mistake is misreading confirmations — a payment with one confirmation has genuinely arrived, while a high-value one should sit for several more before you consider it irreversible. Keep these four contexts in mind and the explorer becomes a source of calm clarity instead of confusion.

Building a quick verification habit

You do not need to memorise every field; you only need a consistent routine. When someone claims they paid you, get the TXID, open the correct explorer for that chain, and paste it in. Then run down three checks in order: status shows Confirmed, the To address matches yours character for character, and the value is the amount you expect. If all three hold, the funds are in your wallet, and how many more confirmations you want before releasing goods is a matter of the payment size. For tokens on Ethereum, repeat the check on the Token Transfer tab. For very large payments, wait for at least six Bitcoin confirmations before treating it as final. This thirty-second habit is the single most reliable way to protect yourself from being fooled by a fake payment screenshot, because a block explorer cannot be photoshopped.

Reading further

The three related guides complete the picture. The transaction-status article walks through what each status really means when a payment looks stuck, the blockchain-explorer guide covers the broader toolset, and the wrong-address article explains what happens if a payment has gone somewhere it should not — and why you should never assume a mistaken transfer is recoverable. Read them in that order and you will go from nervously checking screenshots to confidently verifying any transaction on your own.