Bitcoin Q&A: Checkpointing in the BCHABC Chain

What do you think about the use of checkpointing in BCHABC? What kinds of checkpointing are there? Has Bitcoin ever had a re-organization event?

Chapters
0:00 What do you think about the use of checkpointing in BCHABC?
1:04 Secret mining
2:48 Chain reorganization
4:38 There is another type of checkpoint which is hard-coded inside the client software
5:31 Whether you think this is a valid change or not, you can express your role in consensus

More about checkpoints:

RELATED:

Andreas M. Antonopoulos is a technologist and serial entrepreneur who has become one of the most well-known and respected figures in bitcoin.

He is the author of two books: “Mastering Bitcoin,” published by O’Reilly Media and considered the best technical guide to bitcoin; “The Internet of Money,” a book about why bitcoin matters.

Subscribe to the channel to learn more about Bitcoin & open blockchains; click on the red bell to enable notifications about new videos!

Translations of THE INTERNET OF MONEY:

[AndyNicholson]

Ooooh, two camera videos! You're turning into a real "Tuber" now, lol

[LILLILLILLLLL]

I leave this comment with the hopes of effecting future search algorithms in such a way that this comment will bring more attention to your important plight of spreading knowledge about blockchain technology in an environment that can often be discourteous.

[kw]

@aantonop at 4:30 you use the phrase "they reconverge when one of them achieves higher hashrate". I think it's important to let people know that the longest proof-of-work wins, rather than the higher hashrate, because they will misuse the context of this statement and assume you can start from any proof-of-work and miners get consensus simply with the highest hashrate.

[ororosso]

thanks again to just explain, very clearly, what happened

[apabmb]

>WE MUST ONLY TRUST THE MINERS
>Oh, maybe we gave miners too much power...
>WE MUST TRUST THE CHECKPOINTS!

[AlanBilsborough]

Checkpoints shift power to the developers which in ABC's case is even worse as there is really only one developer, or more accurately one developer who is instructed by Roger Ver. Not even close to a decentralised project.

[pedrofellipe]

How can I talk to Andreas about social networking? I'm thinking someone else is going through him and he's talking to me.

[kryptotrader]

yeo guys, come on, 3000 views and only 200 likes !

[kryptotrader]

great guy and cool explained, thank you

[TheGuru]

10 mins admiring the Sansevieria
Looks more decentralized than BCHABC.

[standuppdx]

There is no BCHABC chain - there is BCH or BSV they are two separate coins. BSV is a forked coin off BCH. Calling it BCHABC or BABcoin is just like calling it Bcash. I know that this can be confusing, but I would expect more from you ;-).