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 the Bitok Arena master wallet, a TXID is generated the moment the transaction is broadcast to the Bitcoin network. This TXID is your on-chain proof that the transaction occurred. It allows you to verify the transaction's confirmation status on any Bitcoin block explorer, check that the correct amount was sent to the correct address, and confirm the number of blocks that have been added to the blockchain since your transaction was included — which determines how many confirmations your entry has received and when it will appear on the Bitok Arena leaderboard.
The transaction hash is not assigned by Bitok Arena or any other party — it is generated by the Bitcoin protocol from the content of the transaction itself. Any change to the transaction content produces a completely different hash. This means the TXID is simultaneously a unique identifier and a cryptographic proof of the transaction's exact content: the amount sent, the sending address, the receiving address, and the fee paid.
Finding the TXID depends on which wallet or application 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 or long-press copy option. In Exodus, navigate to the BTC wallet, tap the transaction from the recent transactions list, and the TXID appears in the transaction detail view with a copy function. In Trust Wallet, tap the BTC transaction from the activity list — Trust Wallet also provides a direct link to view the transaction on a block explorer, which opens the transaction on 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 copying the TXID, open mempool.space — the most widely used Bitcoin mempool visualizer and block explorer — and paste the TXID into the search bar. The result page shows the complete transaction details: input address (your sending address), output addresses (Bitok Arena master wallet and any change address returned to your wallet), the exact BTC amount sent to the master wallet, the transaction fee paid, the block height at which the transaction was included (if confirmed), and the number of confirmations. Three confirmations is the threshold for a Bitok Arena leaderboard entry — mempool.space shows the current confirmation count, which updates as new blocks are added. A transaction with zero confirmations is unconfirmed — it is in the mempool but has not yet been included in a block.
mempool.space shows the fee rate paid in sat/vbyte — the variable that determines how quickly a transaction is included in a block relative to other pending transactions. Checking the current mempool state before sending a time-sensitive entry reveals what fee rate is needed for the target confirmation window. Underpaying on fees during a congested period means waiting in the mempool, not confirming in the next block.
Three confirmations is the point at which a Bitok Arena entry registers on the leaderboard. Each confirmation is a new block added to the blockchain above the block containing your transaction. The first confirmation arrives when a miner includes your transaction in a block — typically 10 minutes at standard block times. Each subsequent block adds another confirmation. At three confirmations, the Proof of Work accumulated above your transaction makes reversal economically irrational, and the leaderboard updates to reflect your entry.
Bitok Arena Entries and the Fee Chart
The mempool.space transaction view also shows the fee rate paid in sat/vbyte (satoshis per virtual byte), which determines how quickly the transaction is included in a block relative to other pending transactions. Transactions with higher fee rates are included in earlier blocks; transactions with lower fee rates wait in the mempool until miners include them. During periods of low network activity, even minimum-fee transactions confirm within one to two blocks. During congested periods — such as during significant Bitcoin price movements or popular application launches on Bitcoin — low-fee transactions can wait for hours or days. Checking mempool.space before sending a time-sensitive Bitok Arena entry shows the current mempool state and recommended fee rates for target confirmation times.
Reading a TXID on mempool.space — what each field means:
Transaction ID (TXID) — The 64-character hex string you searched; displayed at the top of the page; this uniquely identifies your transaction on the Bitcoin blockchain.
Status — Confirmed (number of confirmations shown) or Unconfirmed (in mempool, awaiting inclusion in a block); Bitok Arena requires status: Confirmed with 3+ confirmations.
Block height — The block number in which the transaction was included; each subsequent block adds one confirmation; if the transaction is at block 791,000 and the current block is 791,003, the transaction has 3 confirmations.
Inputs — Your sending address (bc1q...); this is the address that appears on the Bitok Arena leaderboard as your competitive identity.
Outputs — The Bitok Arena master wallet address (your intended destination) plus any change address returned to your wallet; confirm the master wallet address and amount match what you intended to send.
The most common reason a Bitok Arena entry does not appear on the leaderboard after sending is fewer than three confirmations. The entry exists on the blockchain — mempool.space will show it — but it has not yet accumulated the required three blocks. In this case, the correct action is to wait, not to resend. Sending again before the first transaction confirms does not speed up the original transaction; it creates a second transaction from the same address, which adds to the round total but does not resolve the confirmation wait on the first transaction. Check mempool.space for the first transaction's confirmation count and allow it to reach three before concluding that something went wrong.
When the TXID Shows an Unexpected Address
Examining the TXID output in mempool.space may show an address other than the Bitok Arena master wallet in the outputs section — specifically, a second output returning "change" to your own wallet. Bitcoin transactions consume entire UTXOs (unspent transaction outputs) and return the difference between the UTXO and the intended send amount as change to a change address in your wallet. This is not an error — it is how the Bitcoin protocol works. Your wallet creates the change address automatically, and the amount returned is the UTXO value minus the send amount minus the network fee. Seeing a second output in your transaction does not mean the BTC went to the wrong place; it means the wallet correctly handled the change from the transaction.
A change address in your transaction outputs is not an error — it is the Bitcoin protocol returning the difference between the UTXO consumed and the amount you sent. The Bitok Arena master wallet address appears as one output; your change address appears as another. Both are correct. The only check that matters is confirming the master wallet address is present and the amount beside it matches your intended entry.
Two outputs in a single transaction is the expected structure when the UTXO value exceeds the intended send amount plus fee. A self-custody wallet like BlueWallet or Exodus generates a new change address in your own wallet for the returned amount — this address is under your control and spendable like any other address. The UTXO model also explains why the "amount" field you see in mempool.space for your transaction may not exactly match what you entered: the displayed input amount includes the change being returned to you, not just the amount that went to the Bitok Arena master wallet.
Verifying the Output Address
Verifying the correct output address in the TXID is the final security check after sending. In mempool.space, find the output that shows the Bitok Arena master wallet address and confirm the amount next to it matches your intended entry amount (minus any rounding that the wallet applied). If the amount looks different from what you expected, check whether the wallet may have reduced the send amount to accommodate the fee. Wallets that calculate fees dynamically sometimes reduce the send amount slightly if the fee calculation changes between when you entered the amount and when you confirmed. The critical check is that the Bitok Arena master wallet address is in the outputs — if it is, the BTC is headed to the correct destination regardless of any other output present.
TXID troubleshooting guide for Bitok Arena entries:
TXID not found on mempool.space — Transaction may not have been broadcast; check wallet for pending or failed status; if the wallet shows pending, the transaction is in the mempool but may take time to appear on mempool.space during high-traffic periods; try again after 2–3 minutes.
Transaction unconfirmed for over 1 hour — Fee rate may be below the current mempool minimum; check mempool.space's mempool fee chart; if your fee rate is below the lowest-priority bucket, the transaction will confirm but may take longer during congested periods; wait rather than resending.
Correct address but zero leaderboard appearance — Transaction may have fewer than 3 confirmations; check mempool.space; wait for the third confirmation before concluding the leaderboard is not updating.
After your Bitok Arena entry reaches three confirmations, the TXID remains useful as your competition record. Block explorers retain transaction history permanently — a TXID generated today is searchable years from now. For a competitor who wants to document their competition history across many rounds, maintaining a record of TXIDs per round creates a verifiable history of entries and results. The blockchain records the competition. The TXID references that record. Any tool that reads the Bitcoin blockchain can confirm the entry, the amount, and the timing — independent of Bitok Arena's own records, independent of any platform claim, and permanent for as long as the Bitcoin network continues to operate.
TXID as On-Chain Identity
The TXID and the sending address together form a complete on-chain identity for a Bitok Arena entry. The sending address (your bc1q address) is what appears on the leaderboard. The TXID is the specific transaction from that address to the Bitok Arena master wallet. Together, they constitute a record that any block explorer can verify: an address committed a specific amount of BTC to the Bitok Arena master wallet at a specific time. No intermediary's confirmation is required. No platform's database needs to be trusted. The Bitcoin blockchain is the record, and the TXID is the index into that record.
A transaction hash is the Bitcoin network's receipt. It proves that a specific amount of BTC moved from a specific address to the Bitok Arena master wallet at a specific block height. The receipt is public, permanent, and verifiable by anyone with internet access and a block explorer. This is the transparency that makes Bitok Arena competition fundamentally different from any platform that asks you to trust its internal records.
Copy your TXID from your wallet after sending. Paste it into mempool.space. Verify the Bitok Arena master wallet address appears in the outputs at your intended amount. Count the confirmations — at three, your entry is live on the leaderboard. That TXID is your permanent on-chain proof of participation in today's round. Send your BTC to the Bitok Arena master wallet now and get the TXID that the Bitcoin blockchain will record permanently.
The transaction hash after sending to Bitok Arena is your on-chain proof of entry — a 64-character string that identifies your specific transaction on the Bitcoin blockchain, shows your sending address, confirms the amount, and tracks the confirmation count. Find it in your wallet, verify it on mempool.space, and send your BTC to the Bitok Arena master wallet to generate one for the current round.