I must confuse you Sorry, All transactions in the stale block will be sent to the mempool but the transactions included in the other block will be invalid in the next block since the transactions are in the blockchain So only the 5% will be included in the next block. They can’t spent twice. Hope this make senses.
- initially both blocks are propagated through the network, this is when a fork happens.
- a stale block is a block that is discarded by the network if it was produced at exactly the same time as another block.
- when miners mine blocks at exactly the same time
- you have to wait in order to minimize stale/orphaned blocks and give time for the new blocks to proprage through the network.
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A blockchain fork will be created. Each miner node will have it’s own version of what the main blockchain is and propagate it to its neighbours. As a result, two sections of the network will have a different version of the blockchain. When one of these sections receives the new block from the other sections on top of the same height, it will keep it in stale mode but still keep their previous block as the main blockchain as that is the one they have received first. The main principle that applies here is that any node will consider that the branch with the highest proof of work (meaning that it has the most consecutive blocks) will win. On the next round of mining, this stalemate situation will most likely cease to exist because it would be very rare that again two miners, one in each branch, mints a new block at about the same time and that block is not propagated quickly enough before one of the forks has the time to mint a valid block and win the race to the longest chain.
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A stale block is a valid block (the nonce produces a hash that is a valid solution to the current height) that is not part of the main blockchain because it was received on that node later on. The stale block will be kept in the node for as long as the stale blockchain and the main blockchain have the same proof of work (the same number of consecutive blocks).
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Stale blocks happen because two nodes of the blockchain have produced a valid solution to the mining problem of the current block in the network at about the same time. When that heppens, those nodes will propagate their block to the next neighbour (and so on and so forth from node to node) until one of the two forked blockchains receives the alternative block. Since the alternative block is received after the first one, the block is considered by the protocol to be stale.
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Waiting for one block to be confirmed when sending or receiving a transaction is a handy rule of thumb that greatly diminishes the probability of your transaction from not having it accidentally made it only into a stale branch. The longer you wait, the more unlikely it is that your node is connected to a fork that will later on not be part of the consensued main blockchain. Usually waiting for one block is enough, but of course you can wait two, three or more to be even more certain about it.
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What happens in the bitcoin network when two miners solve a block at the same time?
The Blockchain gets split in two -
What is a stale block?
It is a verified block that gets placed back into the mempool after being on the shorter chain -
How do stale blocks occur?
If a block gets placed on a split chain and there is no other block that gets confirmed after it then the block becomes stale or dropped into the mempool. -
Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
So that you are sure that your transaction will not be dropped.
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- One of those miner’s block will be chosen by the next miner to propagate, while the other’s block will be dropped.
- A stale block is one that on the blockchain for a time, but was dropped from the network.
- Stale blocks occur in the event that two blocks were mined at same time, one was chosen to propagate through the network, creating a longer chain and the other one drops.
- It’s important to wait for more than one block to be confirmed so that you can make sure that the your transaction doesn’t become part of a stale block, thus returning it to the mempool.
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- What happens in the bitcoin network when two miners solve a block at the same time?
- If in this case its a draw, the winner is the one whose block is picked by another miner therefore making that chain of block longer than the other.
- What is a stale block?
- A stale block is a block that was previously a confirmed transaction but that it has been rejected due to the fact that another one equally similar has surpassed it for mining purposes.
- How do stale blocks occur?
- Stale blocks occur when two miners solved a block at the same time, being that the one with the longer chain moves on and the other one gets rejected after.
- Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
- Because there is still a possibility that you can get rejected if there was another chain that completed the puzzle at the same time as you do and it was rather selected to be the right one being it a longer chain if it was picked up first by another miner.
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What happens in the bitcoin network when two miners solve a block at the same time?
they will both propagate their block to the network and wich is picked up by an other miner the network will always choose the longest chain of blocks
What is a stale block?
also called orphaned block, is a block who found the nonce at the same time but is not picked up by the network because he is not the longest
Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
It is best to wait for the 6 next blocks to be sure he is confirmed because the block can become a orphaned block and than it is rejected by the network.
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- They will propagate throughout the network, but at a certain moment one chain will be longer in the sense of POW which makes the other blocks become obsolete (although they could have been valid blocks)
- It’s a block that eventually gets removed because of 1.
- because data needs to travel and propagate which takes time. Meanwhile, a chain that was chosen by other nodes might be longer making the other blocks obsolete
- To be sure your transaction has proceeded. It’s possible your transaction is part of an orphaned block which then is returned to the mempool
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What happens in the bitcoin network when two miners solve a block at the same time?
A fork occurs when two or more miners find a block at nearly the same time. The fork is resolved when subsequent block(s) are added and one of the chains becomes longer than the alternative(s). The network abandons the blocks that are not in the longest chain. -
What is a stale block?
A stale block is a block that was previously been added to the blockchain that is dropped as a result of it being on the smaller fork of a split chain -
How do stale blocks occur?
When two or more miners mine a block at almost the same time and propagate that block over the neighboring blockchain network, a temporary fork occurs. The next blocks will define which is the longest chain, and the other will be discarded. -
Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
To ensure that your transaction is part of the longer blockchain and that it wasnt returned due to being part of a stale block.
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- They are both implemented as half of the new chain with half of the code from the previous hash, if another block is added onto any one of those two blocks the other will be dropped due to the other being the longer code.
- A stale block is when an orphan block on the shorter blockchain with another version has been accepted as the main block of the chain and it is dropped.
- They occur when two Blocks that are competing to be the next block on a chain end up getting the same nonce at the same time and this causes a split of information creating to valid blocks that are divergent of one another on the same line of a blockchain.
- The reason it is better to wait for more than one block to be confirmed before send or receiving a new transaction is because to see if a chain is running properly and is following the rules and confirmations allowing the code to become more accepted as the better blockchain.
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Both blocks will be on the blockchain but the one with the shorter chain will be dropped from the blockchain and be sent to the mempool.
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a block that was on the blockchain but got dropped from the blockchain.
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when two miners mine blocks, the one with the shorter chain will be dropped and thus becomes a stale block.
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so you can be sure that the block won’t get dropped.
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An accidental fork happens eventually more blocks are added to the chain, the one that becomes the longest eventually gets rewarded
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Blocks that are not accepted into the blockchain because of time lag.
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When 2 miners produce valid blocks at the same time, the one that produces the slowest ends up being the stale block.
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The more blocks that are confirmed the harder it is for blocks to be hacked and also the small chance that the transaction won’t be reversed.
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- when that happens, for a brief moment there are two versions of the blockchain, then whatever is linked faster and gets a longer chain of transactions will be the accepted version and the other one will have the transactions in the invalidated blocks dropped, when that happens the block is called orphaned block and the transactions go back to the mempool.
- a stale block is a block that got invalidated due to a new version of the blockchain that developed faster.
- If two slightly different blocks are propagated at the same time and accepted as valid, the nodes might include two blocks in the same position because they are not completely synced, that creates multiple variations of the cain, after some time, the longest one is the accepted one and the other one has the blocks dropped(stale blocks) and the txs are put back in the mempool
- because doing so lowers the risk of having to solve stale blocks all the time, losing efficiency and speed
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The blocks will compete until the network “chooses” a winner - usually the longest (thinking in difficult terms; thinking about the one chain that has the most PoW) -; then the other is droped and the transactions return to mempool
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It’s the blocks that was in the loser chain
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When two miners solve a block at the same time and the information doesn’t spread through the network at the same time. So the new chains will compete until there’s only one version of the truth again
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To avoid stale blocks
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What happens in the bitcoin network when two miners solve a block at the same time?
The network will temporary create 2 chains and start popagating it. After sometime only one of the 2 chains will win, the longest chain. The other will be invalidated. -
What is a stale block?
A block that is being drop because it’s not part of the longer chain. This block is sent back to the mempool. -
How do stale blocks occur?
When the block is mined at the same time by 2 miners, and it’s not part of the longer chain. -
Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
To be sure your transaction is on the longer chain. You have to wait 6 confirmations blocks to be sure your transaction is valid on the network.
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- What happens in the bitcoin network when two miners solve a block at the same time?
- Both will be added to the blockchain, later the longer chain (after more blocks are added) will be kept and the other (stale) will be discarded and the data in it added to the mempool.
- What is a stale block?
- a block that was mined and propagated but later discarded as another chain was solved at the same time
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How do stale blocks occur?
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Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
- to make sure if another block was mined at the same time and yours may become stale
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If two miners solve a blocks at same time it depends on next miner which block he chooses
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The left over block with shortest chain is stale block
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They occur when they are not the longest chain which they are leftovers
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Because they are not leftovers as a stale blockchain
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What happens in the bitcoin network when two miners solve a block at the same time?
The block in the longest chain wins and the other block is dropped and is considered a stale block. All of the transactions will be dumped into the mempool.
What is a stale block?
A stale block is a block that was successfully mined but isn’t included in the “better” block chain.
How do stale blocks occur?
When there are 2 miners who successfully mine a block at the same time, the best one wins and other gets dropped.
Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
To ensure that block that the transaction was included on isn’t a stale block.
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- What happens in the bitcoin network when two miners solve a block at the same time?
They each begin propagating their version of the blockchain to other nodes. This results in all nodes having a different version of the blockchain. When other miners begin mining based on whichever version of the blockchain they had access to one of the two chains will eventually become longer and will become the new valid chain. This new chain is propagated and transactions present in the other chain are returned to the mempool.
- What is a stale block?
A block that had its transaction data returned to the mempool.
- How do stale blocks occur?
When there are competing versions of the same transaction data.
- Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
It is accepted that six subsequent blocks be added to the blockchain. This can give confidence that the transaction is actually confirmed and will not be returned to the mempool.
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- What happens in the bitcoin network when two miners solve a block at the same time?
Each broadcast their version of the blockchain, till new blocks are mined, them the longest version prevails as the truth and the other block is dropped and their transactions come back to the mempool
- What is a stale block?
It is a block that was in the blockchain but it got dropped - How do stale blocks occur?
explained in point 1 - Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
each block that comes after the block it rise the probability to be in the chain that prevails. the advise is to wait for 6 confirmations, 1 hour, what it is a big issue for scalability