11 votes
Accepted

How many more transactions per second will be possible with SegWit?

Best estimates on effective blocksize with SegWit are 1.6-2.0 MB. Current transactions/second possible are around 3 tx/s. Given that the effective increase is 1.6 - 2.0x, the transactions/second are ...
Jimmy Song's user avatar
  • 7,759
3 votes

Why would I trust a cryptocurrency that allow only 3 transactions/s?

You are equating the value of a currency with the performance of just one way to exchange that currency. There are poor ways to exchange dollars as well. Also, I'm not sure what you mean by "invest ...
David Schwartz's user avatar
2 votes
Accepted

Does Bitcoin's high price make payments in stores less viable?

Bitcoin for Point-of-Sale Bitcoin is inherently ill-suited as a form of instant payment. This is due to transactions needing confirmations before they become reliable which even at best times can ...
Murch's user avatar
  • 75.3k
2 votes
Accepted

What is the maximum transaction throughput of the Bitcoin network?

The smallest transaction that would commonly occur in the wild is a P2PKH transaction with one input and two outputs (send amount and change output). A P2PKH input has 148 bytes, a P2PKH output has 34 ...
Murch's user avatar
  • 75.3k
2 votes

What's the difference between BTC and BCH transaction capacity?

tldr - BTC = 3.33-6.66tx/second, BCH = 27 tx/second For non-segwit-enabled Bitcoin nodes, transaction capacity is determined by Bitcoin's 1MB block size limit. A 1MB block will contain about 2000 ...
Peter Berg's user avatar
2 votes
Accepted

1 block only allow about 2000 transactions. Does it mean every 10 minutes, bitcoin can allow 2000 transactions?

2-3000 transactions can be included in each block. But that does not mean that only that many transactions can be made every 10 minutes. There can be, and has been, several thousands more transactions ...
Ava Chow's user avatar
  • 70.4k
2 votes

Is it possible that transactions throughput will grow to beyond what can be synchronized?

When a transaction is broadcast to the network it enters the "mempool". Every full node maintains a pool of unconfirmed transactions in RAM memory. Newly broadcast transactions are relayed from node ...
venzen's user avatar
  • 609
2 votes

What's max possible tx/second right now?

If you want to maximize the (useful) transactions per block, you should try to minimize the transaction weight. The smallest payment transaction using standard output types would be a transaction with ...
Murch's user avatar
  • 75.3k
2 votes

What's max possible tx/second right now?

There is a large gap between the theoretical maximum value of tx per second vs. what is actually feasible. Edit. Note that these calculations are arbitrary, as the comment from Murch pointed out the ...
Juha Siivikko's user avatar
1 vote

Difference between capacity and max_htlc in Lightning Network?

The capacity of a channel is the number of satoshis that are stored in the payment channel. They are split between the two channel partners and offered htlcs. No payment larger than the capacity can ...
Rene Pickhardt's user avatar
1 vote

Estimating Lightning Network's theoretical transaction throughput

It really depends on whether you model random payments (or actual economic activity), some of which will need only a hop or two, while others may need upwards of 6 hops between nodes on different ...
Michael Folkson's user avatar
1 vote
Accepted

Why are there always some unconfirmed transactions?

The lifecycle of a transaction is the following: Transaction creation: A sender creates a transaction, he includes a list of recipients, determines which previous transaction outputs to spend, and ...
Murch's user avatar
  • 75.3k
1 vote

Why are there always some unconfirmed transactions?

Transactions selected in mining blocks is not like a queue, where you wait your time and get to the front eventually. Fees are not mandatory, but should be included in every transaction, if you have ...
Daniel Morritt's user avatar
1 vote

Why would I trust a cryptocurrency that allow only 3 transactions/s?

You're looking at bitcoin's main value as a medium of exchange. It's actually more useful as a store of value. Think more Gold than Paypal. There are two reasons for you buy bitcoins: To purchase a ...
Jimmy Song's user avatar
  • 7,759

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