Homework on Soft and Hard Forks - Questions

Blockchain and Bitcoin 101
#3873

  1. What is the difference between a softfork and a hardfork?
    A soft fork makes previously invalid blocks valid. A Hard fork makes previously valid blocks invalid.

  2. What are some of the reasons why you would do a hardfork?
    To change the consensus mechanism & its democratic. Also to increase the block size.

  3. What are some of the risks with performing a hardfork?
    Splits the community and hash power

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#3874

  1. The difference between a Soft Fork and a Hard Fork is that a Soft Fork makes previously valid blocks invalid and Hard Fork makes previously invalid blocks valid.

  2. Some of the reasons why I would do a Hard Fork is for a Clear / Democratic Type Update to PoW Consensus Algorithm.

  3. Some of the risks with performing a Hard Fork would be that it could potentially Split the Community / Chain / Hash Power / Currency.

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#3875
  1. A soft fork is when an update is made that makes previously valid blocks invalid. A hard fork is when an update is made that makes previously invalid blocks valid.
  2. You would do a hard fork to provide a clear understanding of the update and to remove any confusion on the blockchain.
  3. Some risks associated with performing a hard fork are having splits in the blockchain, splitting up the community, and also a lack of security.
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#3876
  1. a SF is a contraction of the ruleset, that makes previous invalid blocks valid; a HF is an expansion of the ruleset, that makes previous valid blocks invalid.
  2. because a clear update is needed or because is a fact affecting the overall system and new conditions are required (expansion of the ruleset).
  3. chain split, community split, hash power split ,…
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#3877
  1. What is the difference between a softfork and a hardfork?
  • A softfork (backward-compatible protocol update) is a smaller change that doesn’t create a whole new blockchain, whereas, a hardfork (backward-incompatible protocol) creates an entirely new blockchain.
  1. What are some of the reasons why you would do a hardfork?
  • To introduce additional updates that allow the network to preform faster, or because I was unhappy with the current protocol so I want to introduce a totally different way of transacting.
  1. What are some of the risks with performing a hardfork?
  • There will be confusion, less hashing power for each iteration of the chain, possible security concerns, etc.
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#3878

  1. Basically a soft fork makes previously valid blocks invalid, where as a hard fork makes previously invalid blocks valid.

  2. great benefits of a hard fork, if you want to change the rules of your chain/ alter consensus/ split on an entirely different project based on the original blockchain or start your own side chain.

  3. Hard forks can be risky because they can shrink the hash power of the blockchain, by effectively splitting the userbase between two different forks, and rather than keeping them together in one chain.

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#3879
  1. What is the difference between a soft fork and a hardfork?
    • An hard fork soften the rule for valid blocks while the soft fork tightens them.
  2. What are some of the reasons why you would do a hardfork?
    • It’s a democratic clear choice. Miners can go with the chain they prefer. It also expand the allowed rule set.
  3. What are some of the risks with performing a hardfork?
    • It can split the chain, the community and the hash power therefore reduce the security and power of the blockchain.
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#3880

1. What is the difference between a soft fork and a hard fork?

  • Hard forks are caused by an expansion of the rule set which makes previously invalid blocks valid and soft forks are caused by a contraction of the rule set which makes previously valid blocks invalid.

2. What are some of the reasons why you would do a hard fork?

  • Hard forks are caused by an expansion of the rule set. If all nodes are not updated with this expansion a hard fork occurs.

3. What are some of the risks with performing a hard fork?

  • Can cause a split in the chain which reduces the security of the network due to the reduction in hash power.
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#3881

  1. A soft fork is a contraction of the rule set. A soft fork makes previously valid blocks invalid. Only 51% of the hash power is needed to prevent a fork from happening (less than 50% causes a fork in the chain). A hard fork is an expansion of the rule set. A hard fork makes previously invalid blocks valid. 100% of the hash power must be updated with the new rule set in order to prevent a fork.

  2. Change in the consensus algorithm was needed.

  3. Split in the community, split in the hash rate (reduced security), split the chain.

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#3882

  1. While soft fork involves the contraction of the rule set, hard fork involves its expansion.

  2. Some of the reasons why l should choose hard fork are that it is clear and democratic

  3. Some of the risks implied in hard fork are that it can split a community, it reduces security by the reduction of the hash power and it inevitably splits the chain of blocks

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#3883

  1. A soft fork is an update that makes previously valid tx invald and a hard fork is an update that makes previously invalid tx valid.

  2. You could do a hard fork to make a clear update/change in consensus.

  3. Risks are that you get a chain split, split hash power and split community.

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#3884
  1. Soft fork makes previously valid blocks invalid and hard fork makes invalid blocks valid.
  2. For clear, democratic updates and new currencies.
  3. Reduced the security of the network because of reduction in hash power caused by splitting of the network.
    .
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#3885
  1. a soft fork make blocks thats was valid invalid with the update and hard forks updates make blocks that was invalid valid.
  2. if the update came and said blocks can now be up to 2mb when it was previously 1mb.
  3. You split the chain and eventually you’ll gave a stale block and some will go back to mempools.
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#3886

1 - What is the difference between a softfork and a hardfork?

A hard fork is an expensive update, which constitutes an extension of the protocol’s consensus rules generally causing previously invalid blocks to become valid.

An accidental fork is normally linked to the mining competition taking place between the miners for the block reward linked to the target difficulty threshold or the Golden nonce. It is about the fact that two different miners find at the same time a block of the same size. The resolution takes place from the resolution of the mathematical game of the following block. The physical propagation time of the information must be at least six block confirmations for the consensus of all the nodes to take place and definitively confirm the new block. Usually the branch

A litigation hardfork is when a part of the underage community disagrees with the update, the rules to be adopted so that they will not update, which will result in the creation of two separate channels on the network.

A softfork is a contractual update or a contraction of protocol consensus rules whose modifications are backward compatible, in the sense that previously invalid blocks become valid. The nodes will always be able to validate the future blocks created despite the update. However, the update will invalidate the blocks and transactions preceding the update. Although requiring the agreement of at least 51 percent of the network, they are generally preferred because they do not imply any operational complications for the nodes, since generally submitted via the nodes linked to mining, the others having the time. to apply the update, however a branching is possible if there is not, in the long term, at least 51 percent of the network performing the update. It is nevertheless about my least democratic method since forcing its acceptance by integration in fine.

2 - What are some of the reasons why you would do a hardfork?

A hardfork is performed during a major extensive upgrade, involving significant changes to the protocol consensus rules democratically and fundamentally aimed at improving the functioning of the blockchain. However, this improvement can upset a large number of minors who can decide to refuse the update, or even, conversely, force the community to accept the update.

3 - What are some of the risks with performing a hardfork?

However, this improvement may upset a significant portion of miners who may decide to refuse the update which will result in a branch resulting in two forks from the same source code. One retaining the appeal of the original, the other improving it, ultimately resulting in the creation of two separate blockchains.

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#3887
  1. In soft forks there are a contraction of the rules, making previously valid blocks invalid, while in a hard fork there is an expansion as previously invalid blocks become valid.
  2. A change in network’s vision or consensus on what the rules should be.
  3. When a hard fork is performed the security of the network decreases. This is because of the split in the chain, and thus the splitting of the network’s hashpower.
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#3888 
What is the difference between a softfork and a hardfork?

  1. A soft fork makes previous blocks valid blocks invalided.

    What are some of the reasons why you would do a hardfork?

  2. change consensus.

    What are some of the risks with performing a hardfork?

  3. the chain splits and as a result less hash power witch lowers security.

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#3889
  1. Soft fork is more like a contraction which makes everyone accept the new ruleset, whereas Hard Fork is an expansion which makes some accept and others deny the new ruleset
  2. Hard Fork update might be necessary to expand the network based on the consensus
  3. It splits the hash power which imposes risk to the Network
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#3890

  1. Soft forks is an update that makes previously valid blocks
    invalid and hard forks are updates that make previously valid
    blocks valid.

  2. Hard forks gives clear updates. If you don’t update you will be on the previous chain. If you do update you will be on the new chain. Also the updates are democratic and
    work with the rule set.

  3. Some of the risks with performing a hard fork is they split
    the chain and community.

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#3891
  1. Soft forks make previously valid blocks invalid. Hard forks make previously invalid blocks valid.
  2. When consensus needed to be changed
  3. Hard fork lowering security by splitting the chain in 2
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#3892
  1. soft fork the memory size will get reduced. Hard fork the memory size will get enlarged.
    2.to be able to have more transactions in the same block. Which means a change of the consensus.
    3.it splits hash power which lowers the security.
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