One-Block Irreversibility For Hive Means Better Performance But Also Better Security For Existing dApps by gadrian

View this thread on: hive.blog | peakd.com | ecency.com

hive-167922 · @gadrian · May 18 '22

$14.71

One-Block Irreversibility For Hive Means Better Performance But Also Better Security For Existing dApps

The performance upgrade [Blocktrades planned and built for Hive](https://peakd.com/hive-139531/@blocktrades/one-block-irreversibility-for-delegated-proof-of-stake-dpos) which will be included with hardfork 26 may have caught many by surprise in a positive way.

From a very high-level view, what takes 45 seconds now to turn a block into an irreversible block on Hive - which is already very fast in the crypto space - will be reduced to 3 seconds or less (until the next block is produced) in most cases with One-Block Irreversibility protocol changes.

Dan describes in detail how that will be achieved, as well as the similarities and the difference between block irreversibility in DPOS protocols and confirmed blocks in POW protocols. So if you want to know more, read his post I linked above.

So, this is a **performance upgrade**, because blocks reach the irreversibility status much quicker and can be relied on that they won't be changed afterward through forking. A reversible block can be reversed through forking, which can happen if witnesses don't agree on the state of the blockchain at some point. Micro-forks are actually something quite common.

A reversed block may not be something critical when you cast a vote or comment, because you'll do it again if it didn't work the first time.

But if you spend some HIVE or HBD, you really want that transaction to go through as planned.

Because let's say you pay HIVE or HBD for something. Let's say a Splinterlands pack. If the transaction is reversed while it's still not in the irreversible state, you get back your HIVE or HBD, but if the store has already given you the pack, it's their loss, because you get the product, they don't get the payment.

The problem is, apparently, [most dapps don't wait for blocks to become irreversible](https://peakd.com/hive-139531/@themarkymark/re-mahdiyari-rbldt0).
![image.png](https://images.hive.blog/DQmcrDS4NT9pQejcx9MjgkRiXsr7Gf2AmYeZBNkp7rqZweC/image.png)

I understand their owners, degrading user experience keeps people from using their interfaces. And if the risks are not high, they take them.

But looks like from HF26 onwards, they don't have to take those risks either if they switch their code to waiting for a block to become irreversible, without degrading the UX.

Much better will be for newer dapps, which will use HAF for development, and they won't have to deal with these background operations while taking advantage of the One-Block Irreversibility (OBI) that HAF will use.

From this point of view, OBI will **improve security** in the Hive ecosystem as well.

And with the recent Terra LUNA/UST events clear in our minds, many have reconsidered the security features of Hive as positive and necessary, while not so long ago they just hindered our growth (which is also true).

Posted Using [LeoFinance <sup>Beta</sup>](https://leofinance.io/@gadrian/one-block-irreversibility-for-hive-means-better-performance-but-also-better-security-for-existing-dapps)

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@beststart · May 18 '22

$0.05

Sounds cool, Adrian, but once again you have blown me out of the water, lol

👍 gadrian

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@gadrian · May 18 '22

Lol! I know it's an expression but given your post about the swimming pool, the water reference made me think you are commenting from your pool. :)

👍 beststart

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@forexbrokr · May 19 '22

$0.05

Our elected witnesses doing their job to keep the chain secure.

Good to see.

Posted Using [LeoFinance <sup>Beta</sup>](https://leofinance.io/@forexbrokr/re-gadrian-57fgw9)

👍 gadrian

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@gadrian · May 19 '22

I'd like to see them let people know more often what they are doing. Blocktrades is an exception, and Marky showed up in the comments section.

Posted Using [LeoFinance <sup>Beta</sup>](https://leofinance.io/@gadrian/re-forexbrokr-2fuypu)

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@gangstalking · May 18 '22

5 years this has been happening to me, it started here, around people that are still here. Homeland security has done nothing at all, they are not here to protect us. Dont we pay them to stop shit like this? The NSA, CIA, FBI, Police and our Government has done nothing. Just like they did with the Havana Syndrome, nothing. Patriot Act my ass. The American government is completely incompetent. The NSA should be taken over by the military and contained Immediately for investigation. I bet we can get to the sources of V2K and RNM then. https://peakd.com/gangstalking/@acousticpulses/electronic-terrorism-and-gaslighting--if-you-downvote-this-post-you-are-part-of-the-problem

👎 spaminator

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@gratitudemine · May 19 '22

$0.05

I am all for any innovation that improves use engagement on the blockchain, thanks.

👍 gadrian

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@gadrian · May 19 '22

I don't think it will affect engagement. That's on us to improve. :)

Posted Using [LeoFinance <sup>Beta</sup>](https://leofinance.io/@gadrian/re-gratitudemine-6phcng)

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@hivebuzz · May 19 '22

Congratulations @gadrian! You have completed the following achievement on the Hive blockchain and have been rewarded with new badge(s):

<table><tr><td><img src="https://images.hive.blog/60x70/http://hivebuzz.me/@gadrian/upvotes.png?202205190516"></td><td>You distributed more than 93000 upvotes.<br>Your next target is to reach 94000 upvotes.</td></tr>
</table>

<sub>_You can view your badges on [your board](https://hivebuzz.me/@gadrian) and compare yourself to others in the [Ranking](https://hivebuzz.me/ranking)_</sub>
<sub>_If you no longer want to receive notifications, reply to this comment with the word_ `STOP`</sub>



**Check out the last post from @hivebuzz:**
<table><tr><td><a href="/hive-122221/@hivebuzz/pum-202205-15"><img src="https://images.hive.blog/64x128/https://i.imgur.com/xwzanZE.png"></a></td><td><a href="/hive-122221/@hivebuzz/pum-202205-15">Hive Power Up Month - Feedback from May - Day 15</a></td></tr></table>

###### Support the HiveBuzz project. [Vote](https://hivesigner.com/sign/update_proposal_votes?proposal_ids=%5B%22199%22%5D&approve=true) for [our proposal](https://peakd.com/me/proposals/199)!

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@ifarmgirl · May 19 '22

$0.05

That is a positive update :) Glad to know that the devs are doing improvements behind the scenes. *(Came thru Listnerds)*

👍 gadrian

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@gadrian · May 19 '22

RC delegations will probably be the most impactful for the userbase which we'll see in HF26. Thanks for dropping by.

Posted Using [LeoFinance <sup>Beta</sup>](https://leofinance.io/@gadrian/re-ifarmgirl-25hqub)

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@ifarmgirl · May 19 '22

RE: RE: One-Block Irreversibility For Hive Means Better Performance But Also Better Security For Existing dApps

That would be really awesome! It will be very helpful to the new ones coming aboard as limited RC is one of the challenges that new users face.

Posted using [LeoFinance Mobile](https://leofinance.io)

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@jfang003 · May 19 '22

$0.05

I think that this is fairly good and I don't think many applications wait for things to go all the way. I always assumed it was 1 block then irreversible. 

Posted Using [LeoFinance <sup>Beta</sup>](https://leofinance.io/@jfang003/re-gadrian-7kzsa1)

👍 gadrian

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@gadrian · May 19 '22

> I always assumed it was 1 block then irreversible.

Nope. It was a tradeoff UX for lack of security of irreversibility on the part of dapps.

Posted Using [LeoFinance <sup>Beta</sup>](https://leofinance.io/@gadrian/re-jfang003-6efplm)

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@lisamgentile1961 · May 19 '22

$0.05

So are you saying that the developments have already been done but will be official in the next Hardfork? I think transactions on Hive are pretty fast already. Three seconds is amazingly fast. I still think that more security than not is a good thing. And for developers to not get their money because the transaction got reversed because it took too long kind of sucks.  What if that happened with something I purchased on Hive? Would I be able to transfer the Hive or HBD back to the site owner? 
Thanks for sharing this development.
!CTP

👍 gadrian

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@gadrian · May 19 '22

> And for developers to not get their money because the transaction got reversed because it took too long kind of sucks. What if that happened with something I purchased on Hive? Would I be able to transfer the Hive or HBD back to the site owner?

This is not a common occurrence, but yes, if it happens as I described in my example you would have full control over the HBD or HIVE afterward and you would be able to send them to the seller.

👍 lisamgentile1961

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@lisamgentile1961 · May 21 '22

That is good to know. Thanks for sharing that, @gadrian. Have a great weekend. 😀
!CTP<div class="pull-right"><a href="/@hive.engage">![](https://i.imgur.com/XsrNmcl.png)</a></div>

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@mypathtofire · May 18 '22

$0.05

good news. :)

👍 gadrian

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@gadrian · May 18 '22

yes, it is. thanks for dropping by.

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@rcaine · May 18 '22

$0.03

Great information. You really do keep me up-to-date. Thanks for sharing.

👍 gadrian
👎 spaminator

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@gadrian · May 19 '22

You're welcome,

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