- What happens in the bitcoin network when two miners solve a block at the same time?
Both miners begin propogating their block to nodes, eventually a consensus will be found with the longest blockchain. The shortest blockchain will be dropped
and its transactions sent back to the memepool.
2.What is a stale block?
A stale or orphan block is a block in the shortest chain which has been dropped from the blockchain, as a new version has been accepted by all nodes. - How do stale blocks occur?
Stale blocks occor when a blockchain with more PoW is chosen over a blockchain with less. - Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
This prevents stale blocks as it gives the network time to propogate a block before a new one is created.
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- What happens in the bitcoin network when two miners solve a block at the same time?
When two miners solve the block at the same time, one of the blocks will eventually pass on to be an orphan block , because the next miner or miners, will determine which chain it will work on.=
- What is a stale block?
a stale block is a block that has been confirmed but has been dropped by the network due to the fact that it was solved at the same time as another block.
- How do stale blocks occur?
When two miner solve a block at the same time and the different nodes append both of these blocks in different time intervals.
- Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
It is important to wait for more than one block to be confirmed at least 6 times so our Tx does not go back to the mempool and fall under the stale block situation when another miner needs to pick up the tx again in order to continue with the chain that was decided by the network.
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- What happens in the bitcoin network when two miners solve a block at the same time? Longest block wins. If both are equal, then it depends on which version is the next block added on.
- What is a stale block? It is a block that was once in the BC but was removed because a longer BC which did NOT include it was broadcasted. Actually, it’s in correct to say it was removed. It actually was never confirmed. That’s also the reason for 6 blocks best practice.
- How do stale blocks occur? Already answered
- Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction? Because number 2 could happen: there could be a miner A that includes block 1 after block 0 and a miner B that includes block 2 after block 0. This way, two different versions of the BC could co-exist. If you consider miner A version to be confirmed and the BC is updated with a miner B version, with another correct block appended, then version A practically never happened.
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Both blocks were confirmed by the network but one of them go unconfirmed because a longer chain was found. 
- What happens in the bitcoin network when two miners solve a block at the same time?
Both start to propagate their own block but and the other miners will start to mine on top of both blocks. But the next block on one of the chain will be added faster than the other and after 6 blocks added to one version of the blockchain the other block will be dropped. - What is a stale block?
A stale block is a completely valid block which has been dropped because the miners started to mine on another block and make that chain longer - Why is it important to wait for more than one block to confirmed when sending or receiving a transaction?
Because the block that you received might be dropped because it belongs to the shorter chain.
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- What happens in the bitcoin network when two miners solve a block at the same time?
- both miners start to propagate their own block until there is a winning block, the longest one. The shortest block is put back to Mempool.
- What is a stale block?
- The shortest block and a block that was sent back to Mempool
- How do stale blocks occur?
- in a situation when two miners finalized their own block at the same time and started to propagate two different versions of truth
- Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
- to make sure that the longest blockchain is founded
- to make sure that there aren’t two versions of the truth
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What happens in the bitcoin network when two miners solve a block at the same time?
Longest blockchain will win. -
What is a stale block?
The shortest blockchain is called a stale/orphaned block, which means it will be dropped. -
How do stale blocks occur?
When two blocks were produced for the same version of the truth, but the longer blockchain prevails and the shorter one becomes stale. -
Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
Because your transaction could be left stale if it does not have at least 6 confirmations.
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1. What happens in the bitcoin network when two miners solve a block at the same time?
A temporary situation arises where the blockchain forks into two variants. As the miners continue to solve and append their block to one of these variants, the longer chain of verified blocks will win. Thus, the losing variant is discarded and all the transactions of said block are returned to the mempool.
2. What is a stale block?
A stale block (aka orphan block) was a valid block and was part of a variant of the blockchain. The block was dropped because another block that was simultaneously produced became part of a longer blockchain.
3. How do stale blocks occur?
There are times when two blocks are produced at the same time within the 10 minute window. This produces a fork in the blockchain of two versions of truth. As the network propagates with one version of truth and continues to move forward, the blockchain with the longer chain wins out. The other version of the blockchain is dropped and the dropped blocks are called stale blocks.
4. Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
It’s best practice to wait for six (6) subsequent confirmations of the existing blockchain to determine that it is the correct version moving forward. This allows the network to propagate across the world with one version of truth. The risk of your transaction of being in a stale block and returned to the mempool is virtually eliminated after six confirmed transactions.
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- What happens in the bitcoin network when two miners solve a block at the same time? two chains are created.
- What is a stale block? a stale block is a block that was dropped because the sub-chain that it was in was dropped because it was shorter than another chain that was accepted as the single version of truth.
- How do stale blocks occur? Stale blocks occur when a sub-chain of blocks is “rejected” in favor of a longer chain.
- Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction? This ensures that the sub-chain, block, and transaction in question are valid and will not be replaced by a longer chain resulting in the transaction sent back to the mempool. With no chance of the block being rejected, the transaction can be considered confirmed. 6 blocks are typically used to consider a transaction validated.
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one block eventually will win due to longer confirmation
2- Stale block is on that falls off the blockchain due to validity.
3- For chain acceptance. longer the chain the greater the truth
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- What happens in the bitcoin network when two miners solve a block at the same time? The two different blocks will be sent to the other nodes resulting in two different versions of the chain until miners mine the next block on one of them. The longest block will win and the shorter block will be discarded as stale and no longer valid.
- What is a stale block? A block that was valid but was discarded as it was not on the longest chain.
- How do stale blocks occur? they occur when minors mine the same block at the same time, one will end up being discarded as stale.
- Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction? It is important to wait for six blocks to be confirmed to make sure the transaction is accepted and not dropped due to being discarded as a stale block.
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1. What happens in the bitcoin network when two miners solve a block at the same time?
○ Eventually a 3rd miner solves the next block of a particular chain and propogates it
○ This chain that the 3rd miner propogates gets accepted, as it is now the longest chain
○ Those blocks that were in the competing chain now get dropped, and are called "Stale blocks" or "Orphaned blocks"
2. What is a stale block?
○ See #1
3. How do stale blocks occur?
○ See #1
4. Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
○ Waiting for the best practice of 6 confirmations ensure with greater likely hood that your block does not become stale.
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- If two miners solve a block at the same time then they will simultaneously try to propagate a chain that has ‘split.’ Eventually one of the chains will get an additional block which makes the other side of the split chain shorter. Shorter chains get discarded by the network; the transactions from the dropped block are returned to the mempool.
- In the example above, the split block that is discarded by the network is a “stale block.”
- A stale block is created when the network resolves a split blockchain. One end of the split chain will receive a new block faster than the other end of the split. This longer side of the split chain will be preserved and propagate through the entire network. The shorter side of the split chain is automatically discarded by nodes.This discarded block is known as a stale block.
- Because it is possible for your transaction to be placed into a stale block, it is a good idea to wait for six block confirmations before assuming that your transaction has successfully been completed.
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What happens in the bitcoin network when two miners solve a block at the same time?
Both blocks go out to other nodes and stay there until one of the blocks is accepted by another miner and a longer chain is produced, which then leads to the remaining block to be excluded from the blockchain. -
What is a stale block?
A stale or orphaned block is a block that has been dropped from the blockchain. -
How do stale blocks occur?
A stale block occurs where there are two blocks created simultaneously and one of them goes on to produce a longer chain which invalidates the shorter one, which becomes the stale block. -
Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction?
New blocks are created every 10 minutes, allowing the whole system to reset itself. A block may have several other blocks following on from it, but then be turned into a stale block by one that was created simultaneously, but is now part of a longer chain.
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What happens in the bitcoin network when two miners solve a block at the same time? - The blocks are propagated to the network and the first block to have a new block appended to it and form the longer chain becomes the relevant blockchain.
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What is a stale block? - A stale block is the block that is discarded from the above scenario. The TXs from that block return to the mempool.
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How do stale blocks occur? - Stale blocks can occur when multiple blocks are mined simultaneously and one or more become part of the shorter chain.
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Why is it important to wait for more than one block to be confirmed when sending or receiving a transaction? - It is possible for a block to become a stale block. Best practice dictates that you wait 6 blocks for confirmation.
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The Blockchain splits until the chain witch the most POW gets accepted by all and the blocks in the other chain get orphaned
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a block out of the blockchain which was shorter and therefore got orphaned, the transactions from that block go back to the Mempool
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They occur when 2 Blocks get mined at almost the same time.
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In case your tx comes into a Block which later on is orphaned it’s best practice to wait for 6 confirmations.
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- We have two versions of the truth circulating. Nodes who are closer to miner 1 will propagade that block, other nodes will propagade block of miner2.
- Stale block is the one who is dropped from blockchain.
- When you have two new blocks at the same time, one block will win- the one with longer and more difficult (POW) blockchain. The other one will be dropped from blockchain and this one is called stale or. orphaned block.
- You have to wait for 6 blocks just to be sure its 100% confirmed and it will not be dropped.
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- When 2 blocks are solved at the same time one of them will win and the other will become an orphaned block. The longest chain wins between the 2, and the orphaned block returns it’s data back to the mempool.
- A stale block is when 2 blocks are valid, but only 1 goes to the blockchain. The other becomes the stale block.
- When 2 blocks are considered valid at the same time. One block has a longer chain, and moves forward, while the other block becomes stale. Returning it’s data to the mempool for becoming rejected.
- It’s important to wait for multiple confirmations when sending and receiving a transaction, because only 1 confirmation may lead to a stale block.
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- One of them will not be validated once the next miner choose from which block he will add the one he si currently minning.
- A stale block is a block that was produce with another block at the same time approximately so this on compete with another block without knowing if it will be selected at the end
- It occurs during a short period of time where minners can be 2 to work at one same block.
- It is important because that’s the following blocks that will confirmed which one has been choose.
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- Two valid but different chains are developed as a fork of the original chain until one fork develops longer and wins to become the proper chain.
- A stale block is one that was dropped as a result of a forked chain. The stale blocks are dropped when the temporary fork they were in loses.
- Stale block are the result of a temporary fork in the chain resulting from two valid but different blocks being added to the chain in different geographic areas. Once a longer chain is created, the shorter chain is dropped and the longer is adopted as the proper version of the truth.
- Sending further transactions on top of an transaction that got dropped in a stale block can result in possible double spending scenario.
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