A transaction hash — also called a transaction ID or TXID — is a 64-character hexadecimal string that uniquely identifies a Bitcoin transaction on the blockchain. When you send BTC from your self-custody wallet to any external Bitcoin address, a TXID is generated the moment the transaction is broadcast to the Bitcoin network. Bitok Arena Research uses TXIDs as the primary verification tool when tracking on-chain competition entries and prize settlements: the TXID is your on-chain proof that the transaction occurred, allowing anyone to verify the confirmation status, the correct amount, the correct address, and the number of blocks added since confirmation — which determines how many confirmations the transaction has received.
The transaction hash is generated by the Bitcoin protocol from the content of the transaction itself — any change to the content produces a completely different hash. Bitok Arena's analysis of on-chain transaction records confirms this: the TXID is simultaneously a unique identifier and a cryptographic proof of the transaction's exact content: amount, sending address, receiving address, and fee. Anyone can verify these details independently on any block explorer.
Finding the TXID depends on which wallet was used to send the BTC. In BlueWallet, tap the relevant transaction in the transaction list to open the transaction detail screen — the TXID is displayed there as a long alphanumeric string, with a copy button. In Exodus, navigate to the BTC wallet, tap the transaction from the recent transactions list, and the TXID appears in the transaction detail view. In Trust Wallet, tap the BTC transaction from the activity list — Trust Wallet provides a direct link to view the transaction on a block explorer, which opens Blockchair or a similar explorer automatically. On Ledger Live, navigate to the transaction in the account's transaction history and click the transaction to see the TXID and an option to view it in a block explorer.
Reading the TXID in a Block Explorer
After locating the TXID in the wallet, paste it into a Bitcoin block explorer. The two most widely used public block explorers are mempool.space and blockstream.info — both are free, require no account, and provide real-time transaction data. After pasting the TXID into the explorer's search bar, the transaction detail page shows: the sending address, the receiving address or addresses, the amount transferred to each output address, the fee paid, the current confirmation count, and the block height at which the transaction was first included if it has confirmed.
Bitok Arena documented the TXID location path in each major Bitcoin wallet.
BlueWallet — Transactions list → tap transaction → transaction detail screen → TXID displayed with copy option; also provides a direct block explorer link.
Exodus — BTC wallet → recent transactions → tap transaction → transaction detail view → TXID with copy function; also provides block explorer link.
Trust Wallet — Activity tab → tap BTC transaction → transaction detail → automatic block explorer link (Blockchair) plus TXID displayed.
Ledger Live — Account transaction history → click transaction → TXID shown with option to view in block explorer; also accessible from the Bitcoin app on the device itself.
Electrum — History tab → right-click transaction → "Copy Transaction ID"; or double-click to open transaction details where TXID is displayed.
The confirmation count visible in the block explorer is the primary variable for determining whether a Bitcoin transaction is fully settled. On-chain competition platforms typically require three confirmations before recognizing a transaction — each confirmation represents one additional block added to the chain above the transaction, making it progressively more expensive to reverse. Under average network conditions at a Normal fee rate, three confirmations arrive within 30 to 60 minutes of the transaction being broadcast.
Reading Each Block Explorer Field
Block explorer transaction detail pages contain specific fields that first-time users may find unfamiliar. The "inputs" section shows the addresses that provided the BTC for the transaction — typically your self-custody wallet address. The "outputs" section shows where the BTC went — the destination address and, in most transactions, a "change" output returning the difference between the input amount and the sent amount (plus fee) back to your own address. This change output is the unspent portion of the input returned to your wallet — it is not a separate send to someone else. Understanding this prevents the misinterpretation that the transaction sent BTC to an unintended second address.
Bitok Arena reviewed common block explorer misreadings for first-time users.
The change output — Most Bitcoin transactions have two outputs: one to the destination and one returning unused BTC (change) to your own wallet. The change output going to an unfamiliar bc1q address is almost always your own change address — not a third-party send.
Fee calculation — The fee is the difference between total inputs and total outputs; not displayed as a separate output. The sat/vbyte rate determines confirmation speed relative to other pending transactions.
Zero confirmations — Transaction is in the mempool (pending) but not yet included in a block; shows unconfirmed until a miner includes it.
Block height — Confirmation count = current block height minus the block height at inclusion; tells you exactly how many blocks sit above your transaction.
Mempool.space provides an additional useful view: the fee rate visualization that shows where the current transaction sits in the pending mempool relative to other transactions and the current block template. During periods of mempool congestion, a transaction with a low fee rate may be visible in the mempool but not included in any block for extended periods. Mempool.space shows the estimated time to confirmation based on current fee rates — useful for assessing whether a pending transaction will confirm quickly or whether it requires patience.
Using TXID for Support and Verification
The TXID is the primary reference when verifying any on-chain transaction with a third party — including on-chain competition platforms, hardware wallet support, or exchange withdrawal support. When a transaction appears to have gone missing (the wallet shows the send but the destination has not confirmed receipt), the TXID allows any party to check the same blockchain data independently and confirm what happened. A transaction that appears in the block explorer as confirmed at three or more blocks with the correct destination address and amount has settled on the blockchain. A transaction with zero confirmations for an extended period may indicate a fee rate too low for the current mempool — in which case RBF (Replace-By-Fee, if supported by the wallet) can resubmit the transaction with a higher fee.
Bitok Arena's guidance: the TXID is the ground truth for any Bitcoin transaction's status. No platform, wallet, or party's claim supersedes what the block explorer shows when queried with the TXID. Three or more confirmations on mempool.space or blockstream.info means the transaction has settled — independent of what any downstream platform shows. The blockchain record is primary; all other displays are derived from it.
The full transaction verification flow for any on-chain Bitcoin send: locate the TXID in the wallet's transaction history, paste it into mempool.space, verify the destination address matches the intended recipient, verify the amount matches what was sent, note the confirmation count. When all three match and the confirmation count reaches three or more, the transaction has settled permanently on the Bitcoin blockchain. No further action is required from the sender — the on-chain record speaks for itself.
Bitok Arena's TXID guide: the transaction hash is found in the sending wallet's transaction history — BlueWallet, Exodus, Trust Wallet, Ledger Live, and Electrum all display it on the transaction detail screen. Paste it into mempool.space or blockstream.info to verify destination address, amount, and confirmation count. Three or more confirmations equals permanently settled on the Bitcoin blockchain.