Updates & Forks - Discussion

doodesville · December 29, 2019, 9:40pm

Thank you Filip, that was very clearly explained.

Fabrice · December 30, 2019, 8:58am

No, a hard fork is just a change of rules where you change a rule that was invalid before the fork. ex increasing the blocksize to 2mb (wich is invalid before the fork) while stale blocks are Blocks which were successfully mined but which aren’t included on the current blockchain.
So stale blocks are valid they are just not part off the blockchain anymore

doodesville · January 9, 2020, 6:16pm

Hello,
Any tips on uploading atom.

Do I need github?

D

Fabrice · January 9, 2020, 10:07pm

Yes, github is a good place to put your code online.

doodesville · January 10, 2020, 12:08pm

Thank you for your reply.
Have managed to download a text editor called sublime text.

Now onto HTML.

Have a great weekend.

D

blockbasher · January 12, 2020, 12:11am

@filip Great lesson on Accidental forks. I was curious on a stale block when the transactions are returned to the mempool. Many/most of the transactions could most likely be included in the actual block that was accepted by the network. What happens to those transactions (from the stale block) when they are returned to the mempool but were already spent (those included in the valid block)? My guess would be that they would show as spent and be disregarded by the mempool?

Really enjoying the academy!

Fabrice · January 12, 2020, 6:49am

yes, all nodes will eventually sync with the true state of the blockchain.

filip · January 13, 2020, 11:04am

Yes you are correct. For a more step by step picture, you can read this: https://bitcoin.stackexchange.com/questions/92694/how-does-bitcore-handle-transactions-in-orphan-block-situation

Rob_Kammerer · January 15, 2020, 9:34pm

Hi filip, what happens with the compensation for the miner who gets left with the stale block?
do they get a reward also? they receive it and lose it right away?

thanks

Fabrice · January 16, 2020, 3:49am

they don’t recieve a blockreward. This is also the reason that miners need to wait for 100blocks until they can’t spend this.

Yoslick13 · February 2, 2020, 4:25pm

Hi Filip

Related question to this,
WRT “this is one of the reasons you should wait 6 confirmations.” Are there any 6-block confirmation Algorithms installed in current wallets to prevent the tx cancellation accident by slate block?

filip · February 3, 2020, 10:38am

Yes, a lot of wallets won’t let you spend your money unless you got more than 6 confirmations. Almost every wallet will display a warning when you are receiving money that the money you are receiving is “processing” or “in hold” while it’s confirmations is lower than 6. It’s very very common.

mntclimber · February 12, 2020, 9:58pm

Hey Filip, So is bitcoin cash a fork that was caused by miners or nodes who didn’t update from bitcoin?

Fabrice · February 13, 2020, 3:21am

consensus rules were expanded, (bigger blocksize) by a part of the community (blocksize debate) wich has split the community so miners could choose wich chain they want to mine and use. (Aug, 1 2017)

mntclimber · February 13, 2020, 4:18am

Thank you for your answer.

bl0ckchain_br0thaman · February 17, 2020, 2:23am

Excellent explanation of hard forks and soft forks. Thank you!

Enriquee28 · March 1, 2020, 2:20am

Thanks Filip for all the good information on forks!

keithra1948 · March 5, 2020, 3:01pm

I believe he said you don’t lose your money, but your transaction is removed from the stale block and re-added back to the mempool.

harry · March 6, 2020, 6:23am

I saw a video on youtube by Hayden Otto (Bcash supporter) doing just that. I guess that’s why BTC is not good for payment if bad actors figure it out.

rostyslavdzhohola · March 19, 2020, 3:22am

@filip
Question about stale blocks transaction. When the block drops, do the transactions become invalid, or do they go back to the mempool?