Questions tagged [confirmations]

Confirmations correspond to the number of blocks that are dependent on a given transaction. This includes the block containing that transaction and all blocks after it in the blockchain. The more confirmations a transaction has, the more likely is it that it will remain in the blockchain permanently.

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How the bitcoin network solves the double-spending problem by adding all the transactions that happened at the same time into one block

According to my research, I understand if person A sends 2 BTC to person B and at the same time person A sends the same input to himself before the input is considered as spent. So, now there will be ...
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Sent two btc transacton to payeer wallet less than the mnmum deposit,neither where credited

recently sent to my payeer wallet a 0.0002 btc transaction which is less than the 0.0005 minium btc deposit, then did a second transacton of 0.0003 btc thnking that it will sums up. Both transaction ...
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Why does a thin node need to know if a transaction is present in specific block's merkle tree?

I understand what a merkle root is and how merkle proofs work. It's all about thin nodes checking whether a specific transaction ID is in a specific block. So, thin node says: I have a transaction ID -...
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I made a transaction 7 hours ago, the transfer has not yet arrived. I didn’t know that it’s impossible to choose a low commissio [duplicate]

Good afternoon, I made a transaction 7 hours ago,0.0059 BTC, commission 0.0002 the transfer has not yet arrived. I didn’t know that it’s impossible to choose a low commission, because I did it for ...
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Why doesn't BTC reward miners for confirmations, too?

Currently as far as I know when a miner discovers enough 0s, he broadcasts his solution to the network in order to win the coins. While, he broadcasts his solution (which gave him the 0s), he also ...
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Bitcoin Confirmation [duplicate]

it's been 2 days my transaction has not been confirmed yet https://www.blockchain.com/btc/tx/b58aa5a6884d444d783c0f6956d6495ac9dabe28d44d1833ac48ac942cfbc3b4 why it has so many inputs and outputs ...
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Where does “Included in Block” value comes from?

I was exploring transactions inside of a blockchain using this site, and inside of a transaction I noticed there is attribute called Included in Block and its description is: block this transaction ...
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Is history reversal a concern if the absence of attackers is assumed?

As described in the Bitcoin paper, the Bitcoin network may temporarily diverge, or "fork," as nodes may work on different blockchains. The network reconverges, however, as a node will always ...
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Modify the number of confirmations for an utxo to be ```safe == true``` in Bitcoin Core

I noticed that when I call listunspent on Bitcoin Core, UTXO with 0 confirmation are labeled unsafe, and thus prevented from being spent with sendtoaddress or fundrawtransaction. As soon as there's ...
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Cryptocurrency acceptance

I heard that the recommended waiting confirmation time for a bitcoin transaction is 6 blocks/ 1 hour. So a shop which lets its customer to pay in bitcoin without any waiting for confirmation would ...
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Transaction not complete for two days now

I sent bitcoins to a wallet using the QR code in order to be very sure of the address. It shows in my wallet that it has been sent. But the receiver haven't seen it in his wallet. I checked it online ...
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Why is my Bitcoin transaction not confirming today? [duplicate]

Please don't tell me that this also has something to do with this stupid Corona virus. First, it slashes the Bitcoin value in (less than) half. Then I can't order any groceries and have to sit here ...
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why is the number of confirmations rising yet i haven't been credited with the bitcoins? [closed]

I have been waiting to receive bitcoins for close to 7 hours now. The number of confirmations is currently 111, so why is it so? here is the transaction batch ...
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How to get both confirmed and unconfirmed transaction details of foreign(non-wallet) addresses from bitcoin-node server?

How to get both confirmed and unconfirmed transaction details of foreign(non-wallet) addresses from bitcoin-node server? Actually i have generated the addresses using third party library and sent some ...
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How Bitcoin mining contributes to confirmations?

Based on my knowledge I know (maybe wrong) when a miner is doing hash, he is inputting any arbitrary values, in order to get a value that can be hashed into something with certain preceding zeros. ...
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Transaction confirmed for hours, not available in balance

My bitcoin transaction has been confirmed for more than 24 hours and also on the block chain but it has not yet reflected on the receivers balance, all transaction details are correct,what could be ...
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Which wallets support double spending?

Which wallets support double spending? i.e. cancelling a transaction with 0 confirmations by using higher fees
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Bitcoin successfully deducted on sender wallet but did not reach receiver wallet

Here is the wallet address for receiver: 1Gouzjo9Jav1k4AmRoUJJMzidVfnMoSieS. I had used the Blockchair site to see and track status. Based on the details, account had seen receiving last 21 hours. ...
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Genesis block coinbase transaction without confirmations

Why the coinbase transaction, comming from the genesis block, don't have confirmations? All the others coinbase transactions have confirmations, but not in the Genesis block.
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Is Block Finalization a valid development to remove the threat of 51% attacks?

https://www.reddit.com/r/btc/comments/bq8cqo/btctop_currently_has_51_hashing_power/eo2p4md?utm_source=share&utm_medium=web2x A recent comment from a Reddit user in response to BTC.top acquiring ...
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I made mistake sending Bitcoin to old generated address in nairaex …the transaction still writing unspent…how can I get my Bitcoin back

I got 22 confirmation for Bitcoin not up 50$ and still unspent ,ow can I get it reverse back ,it more than 4hours
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Negative number of confirmations for a testnet transaction on blockexplorer

I am curious about the test transaction f72f59a32c1bac47ec87bc3678ec44e98eece5e235d29d79cd1f5461ccc5bf38. Depending on which site I view this transaction, the number of confirmations is positive or ...
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Blockchain.info confirmation misunderstanding

I have some misunderstanding regarding how confirmation work on blockchain.info. If we go to payment history we can see info about confirmation in two places. First in history of all transactions. ...
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What does “Nonstandard output” mean on Tradeblock transaction page?

I tried to send bitcoin but the recipient hasn't received it. The trade block page shows "Nonstandard output" under outputs as shown in the link below: Tradeblock page for transaction I used an ...
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how to prevent losses after a hard or soft fork

i learned about hard and soft forks from this question; now i have a basic understanding about forks; but the answers of that question did not say what happens to transactions on the stale chain; if i ...
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How to check if confirmation is done or not yet?

After sending Bitcoin to any address, how can I check if the transaction has at least one confirmation? Should I poll the transaction repeatedly or is there any event when confirmation is made.
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confirmations: 0 vs confirmations: -1?

I'm looking at a bitcoin clone, not sure what codebase it was cloned from, but I've noticed that the listSinceBlock output sometimes includes: a receive that has 0 confirmations a send that has 0 ...
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Why do transactions take so long to confirm in testnet?

I have created a transaction with high miner's fee and it is now in mempool (in testnet): https://live.blockcypher.com/btc-testnet/tx/abcc4ce473f490896e87102fe3ffb857ff735a0fc97525dadf9c5b0ed5410f9f/ ...
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How do I know one transaction has confirmed?

I am running my bitcoind with -zmqpubhashtx optional, and I receive notification once a new transaction has broadcast to public chain! I can also parser it by getrawtransaction and ...
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Shortest and Longest block interval time ever recorded in Bitcoin

Bitcoin block interval time is on average 10 minutes, that is the difficulty is adjusted in such a way that every 10 minutes a miner will manage to find the right hash. This is just an average time ...
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Is it normal to get 60 confirmations for a transaction in blockchain

Is it normal to get 60 confirmations for a transaction in blockchain and still it is not received and confirmed, can you help I m worrying as this is my first transaction, did I forget anything
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What happened to Bitcoin testnet? [duplicate]

What happened to Bitcoin testnet? Confirmation time is very short. 10 confirmation occurred in three minutes. I use Bitcoin core v0.16.0 (64-bits)
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Definition of confirmation time in blockchain.info, Part 2

In my previous question (Determinant of confirmation time), I asked "What will be the definition of confirmation time and data used for https://blockchain.info/charts ?" Now I read "The classic ...
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Determinant of confirmation time

There seems to be a lots of variations in confirmation time. https://blockchain.info/charts/avg-confirmation-time I would like to understand factors that affects the confirmation time.
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Definition of confirmation time in blockchain.info

What will be the definition of confirmation time and data used for https://blockchain.info/charts ? I would appreciate confirmation.
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Why would more confirmations help in a 51% attack scenario?

After the 51% attack on Bitcoin Gold. The developers of the cryptocurrency recommended the exchanges to increase the confirmations. I don't understand why increasing the confirmations would help if ...
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Custom bitcoin confirmation process

I am implementing a payment module for bitcoins. I have the following case. I need customers to be able to pay in bitcoins. But for some reasons I cannot use existing solutions like Bitpay. ...
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How to increment the number of confirmation of a transaction? [duplicate]

Sorry for this naive question, but honestly it is going to be a great help for me. Say I am tracking a specific bitcoin transaction('TX_1') form bitcoin core. A confirmed block had the transaction ...
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How to know whether my transaction is fraudlent after one confirmation?

Let's say if the transaction tx_1 has one confirmation. But the tx_1 is fraudulent. Can it be rolled back? Here I am storing the confirmed blocks and if my transaction is in the block-1 then the ...
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How can low latency and high scalability be achieved with increased block size in BTC?

One of the solution to address low latency and high scalability in BTC is to increase block size. A single block takes 10 min on average for proof-of-work. Increased block will also take same time for ...
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Meaning of confirmation within n blocks? [duplicate]

I have a hard time understanding the meaning of below sentence: "To confirm within 48 blocks, a transaction fee of 1 satoshi/byte is required." I have 2 questions here: 1) Does this mean that the ...
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Does total size of the transaction affect confirmation time?

Suppose one pays 1 satoshi/byte for their transactions. Will the confirmation of the two transaction below be different? A) a transaction of 1 inputs and 1 output (~192 bytes) B) a transaction of ...
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ways to improve bitcoin tx finalization time

On GDAX website, they claim that 3 confirmations is needed to finalize your tx in. I assume they've done thorough research on this and might've come up with some logic to protect themselves from ...
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When we're calling `getrawtransaction` how does Bitcoin-core calc and verify confirmations?

if a transaction has 10 confirmation, does bitcoin-core check if the txid exists in the last 10 blocks? or its calculated based on transaction block number?
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How can a block regarded as confirmed in bitcoin?

I am a little confused with confirmation mechanism in bitcoin PoW consensus. According to bitcoin wiki: After a transaction is broadcast to the Bitcoin network, it may be included in a block that ...
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Is every bitcoin transaction (eventualy) validated by every miner? [duplicate]

I can see that my bitcoin transfers becomes real when my exchange detects 2 or more confirmations. I believe each confirmation is a validation. Am I correct? If so, How many confirmations will have ...
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Why maturity rule on coinbase tx requires too many confirmations w.r.t an arbitrary tx?

For an arbitrary tx, it is often said that 6 confirmations is sufficient. However, maturity rule states that coinbase tx can't be spent until it receives 101 confirmations. Why do we have this ...
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Why are Bitcoin transactions sometimes confirmed instantly if blocks are mined every 10 minutes?

I have a basic question on Bitcoin and blockchain: Sometimes transactions are confirmed almost instantly, but there should be a new block every 10 minutes, so how is it possible? A transaction can be ...
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Confirmations in block and trasaction

From the bitcoin RPC, both gettransaction and getblock returns a confirmation number in their response, are they always the same? Is there a case a transaction's confirmations isn't the same as its ...
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Bitcoin deposit stuck 0 confirmations high confidence/low priority [duplicate]

hi i have a deposit stuck in the blockchain im not understanding why, its been stuck for 7 hours now without any confirmations, what is the explanation behind why the transaction is stuck? https://...

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