Segwit Reading Assignment

Blockchain and Bitcoin 101
#2168
  1. To increase the block size.
  2. Transaction malleability.
  3. Segwit enabled for transactions to be made in the Lightning network by fixing the malleability issue. Before Segwith the transactions to Lighting was vulnerable to change of ID and was not secure. Segwit fixed this.
  4. No, it is backward compatible (soft fork) with older type of transactions.
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#2169

1 An increase in block size was a proposed alternative
2. Solved the problem of transaction malleability
3 Segwit wit made a second layer solution like lightening network possible.
4 No due to it being a soft fork

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#2170
  1. Increase the block size
  2. Made more complex transactions possible like lightning network
  3. Segwit made it possible to do faster transactions because it made the blocks lighter
  4. No
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#2171
  1. To increase the blocksize
  2. It no longer possible to alter the transaction-i.d.
  3. The Lightning network needs Segwit( or something similar) to work as intended.
  4. No
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#2172
  1. Increase size of the blocks
  2. Fixed transaction malleability making it secure
  3. Segwit supports 2nd layer
  4. No
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#2173

Lightning network is a second layer solution, not a complex transactions. Most of the features that Lightning requires were already implemented before segwit. Segwit in fact only changed the transaction structure by moving the witness data thus solving the malleability issue. :slight_smile:

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#2174
  1. What was a proposed alternative to Segwit? Increasing the block size such as in the instance of Bitcoin Cash
  2. What did Segwit solve more than just the scaling issue? Segwit solved the issue of transaction malleability where changing transaction data would change the transaction ID.
  3. How is Segwit and the Lightning network connected? By segmenting signatures from transactions, Segwit helped make the Lightning network possible by allowing features that rely on unconfirmed transactions to be inherently less risky and easier to design.
  4. Are people, wallets and other services forced to use Segwit? No. Segwit was a soft fork so people, wallets and other services are not required or forced to use it. However, the more Segwit is adopted, the lower transaction fees will decrease so hopefully adoption will continue to increase.
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#2175
  1. To increase valid block size to 2mB
  2. It avoided transaction malleability.
  3. As Segwit made transaction more reliable, second layer protocols like lightning were easier to deploy.
  4. They don’t need to, as non-Segwit blocks are still valid (soft fork)
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#2176

1)the alternative proposal was to expand the size per block to more than 1MB. the same thing they did with the bitcoin cash hard fork.

2)segwit has also solved the problem of malleability , by removing the signatures(witnesses) from the ID of the TXs (hashed) , scamers will not be able to change the ID of the Txs because the signatures are not a part of the ID , thus even if they modifie it , it wouldn’t matters.

3)by ennabling and adopting segwit , it opens the door for second layer solutions for scalabilty like the lightning network , because it is based on unconfirmed TXs (off chain) so we have less risks of mutability.

4)at the beginning no , but with time it will be adopted by everyone for its benefits . so ,with time , if you will not use it , you will get left behind.

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#2177
  1. What was a proposed alternative to Segwit?
    Previously to implementing Segwit an increase in the memory capacity of each block was suggested.
  2. What did Segwit solve more than just the scaling issue?
    Besides now being able to add more transactions into each block: payments fees have dropped, new implementations can be integrated due to the simplicity of the new system.
  3. How is Segwit and the Lightning network connected?
    The integration of Segwit allows the Lightning network to now work side by side to it to provide new adaptations and new compatible functions.
  4. Are people, wallets and other services forced to use Segwit?
    People and other services such as wallets or exchanges are not forced to implement Sigwit, however it has increased considerably 40% and its being proposed to be added on most services in the coming future.
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#2178

Answer#1: The proposed alternative to Segwit was to increase the transaction block size.

Answer#2: Segwit also solved the issue of transaction malleability.

Answer#3: Segwit supports the development of second layer protocols such as the Lightning network.

Answer#4: No because Segwit is compatible with previous protocol.

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#2179
  1. What was a proposed alternative to Segwit?
    Blocksize increse
  2. What did Segwit solve more than just the scaling issue?
    Transaction malleability and improve weight of the block
  3. How is Segwit and the Lightning network connected?
    Supports the second layer solution which is the lightning network
  4. Are people, wallets and other services forced to use Segwit?
  5. No, old addresses and transactions can still be used .soft fork.
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#2180

  1. What was a proposed alternative to Segwit?
    Bitcoin Cash

  2. What did Segwit solve more than just the scaling issue?
    Transaction malleability

  3. How is Segwit and the Lightning network connected?
    They are connected by the fact that Segwit has provided a way for the creation and application of 2nd layer protocols like the lightning network which increases the transactions capacity by taking off frequent and smaller transaction from the blockchain.

  4. Are people, wallets and other services forced to use Segwit?
    No

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#2181

It’s time for a reading assignment about Segwit. Read through the following article [https://www.coindesk.com/information/what-is-segwit] and answer the following questions.

  1. What was a proposed alternative to Segwit?
    The initial proposal was to double the size of each block to 2MB size.

  2. What did Segwit solve more than just the scaling issue?
    SegWit addressed TX Malleability issue: since TX signature is taken out of TX base, it removed the issue of changing Hash due to changes in signature. Previously anyone could change signature - not not, with Witness taken out of TX base.

  3. How is Segwit and the Lightning network connected?
    Because of the SegWit secondary layer protocols could now be developed on top of BTC blockchain, such as Lightning network.
    Lightning network takes frequent, smaller transactions off-chain/ only net settled TX end on BTC b.chain.

  4. Are people, wallets and other services forced to use Segwit?
    They are not forced to use SegWit - old addresses, wallets can still be used as they are compatible with old protocol!

G.

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#2182

A hard fork happened which increased the size of the block and created the bitcoin cash coin.

It created a new concept called block weight which basically increased the information in a block without actually increasing the block size limit. It also allowed for second layer solutions to develop.

Ligthning network is a second layer protocol built on top of the bitcoinb blockchain which could only happen because of the segwit implementation.

No they are not, thats why forks such as BTCash happened.

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#2183
  1. What was a proposed alternative to Segwit?

Increase the block size

  1. What did Segwit solve more than just the scaling issue?

Transaction malleability

  1. How is Segwit and the Lightning network connected?

Segwit prevents transaction malleability exploitation on unconfirmed transaction such as those written on the Lightning network. Thereby making the implementation of Lightning network easier and less risky

  1. Are people, wallets and other services forced to use Segwit? No, it is a soft fork.
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#2184

  1. What was a proposed alternative to Segwit?
    To increase the Block size.

  2. What did Segwit solve more than just the scaling issue?
    Resolving transaction malleability, which allowed someone to alter the transaction after it’d been sent in minor ways to, in turn, change the transaction ID.

  3. How is Segwit and the Lightning network connected?

SegWit, SegWit2x, and the Lightning Network (LN) are all terms that describe proposed changes to Bitcoin’s blockchain to allow for faster transactions.It is up to Bitcoin users, including entities like Coinbase, to embrace SegWit. As more entities embrace SegWit, Bitcoin transaction speeds will become faster.

  1. Are people, wallets and other services forced to use Segwit?
    No, it is not forced upon everybody and compatible with the previous protocol state.
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#2185

A1: Bitcoin Cash was the proposed alternative to Segwit.
A2: Segwit solved the issue of transaction ID malleability.
A3: The lightning network takes small transactions off the block until users are ready to complete their transaction.
A4: No one is forced to use Segwit, they can use Bitcoin cash but the adoption of the Segwit fork is currently at 40%.

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#2186

Lightning network is a second layer solution and doesn’t require changes to the Bitcoin blockchain it merely connects to the blockchain but because of its reliance on unconfirmed transactions it was not safe to implement before tx malleability was resolved by Segwit. :slight_smile:

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#2187

They can also still use old style txs on Bitcoin as well. :wink:

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