Kaven: Navigating EVM Block Explorers |14th Oct 2023 | Sunway University | ETHKL 2023

good morning kale um it's uh a little bit nervous for me because uh both my bosses are in front of me um eal is really special uh for me personally as well uh and for the team uh is because we travel around the world uh and uh we speak at a couple of places as well but nothing's like home cuz uh the people that build Bu The Amazing product that I'm going to share with you guys are all mostly sitting in a room and uh some overseas as well so yeah I want to give a big thanks to my team uh they are all here and without them we don't have this amazing product uh that I'm going to share um I can I see a show of hands uh on how many of you actually use ether scan on a daily basis that's uh quite a lot so yeah most of the feature I think you guys will come about but uh let me just go through with you guys as well uh on ether scan uh on the ethereum blockchain there's many things happening there's transactions uh there are addresses and uh on ether scan we had a couple of uh features that allow you to keep track on all these moving Parts uh on the blockchain uh the number one features that we have uh is watch list so watch list allows you to follow a particular transactions or a particular address and to get notified on uh whatever activity that's happening uh in that particular address uh so watch list is uh really good uh you're able to see uh your colleagues what are they doing and what protocol Alpha that they are diving into uh watch list uh transaction private notes is uh something that uh I love a lot uh because I get forgetful at times and uh if you are working on certain or you are uh working on certain D5 protocol uh or you send some eater where the eater that you bought like ages ago you can put like the value onto this transaction private notes for example you can put a uh what price are you buying at or what price that you spend that particular ether at uh under transaction prior note to kind of keep track on uh what you actually did on that particular transaction uh private name texts are a really good one uh where you're able to identify these addresses uh and uh they will show up on the page and uh you are able to keep track on uh this particular address instead of like XYZ you can put like Joe and Von and the cmen and stuff like that you know uh other than user features uh on ether scan we have a lot a lot of utility features as well uh one of the biggest moving part in blockchain is gas and on E scan we had a very robust gas tracker system for you to know uh what fee that you should use uh for example if there is a mint and you want to get there faster you want to make sure your transaction get included as soon as possible gas tracker is the place uh take a look at the high gas fee uh the quickest transaction speed pay that amount you'll probably get your mean really really quick um other than that uh there are a lot of things happening uh in the blockchain as well um how we categorize them is through Labor word cloud so labor word cloud is a categorization uh features that we have for all the projects like for example 1 inch Unis swap uh when you pick them out you are able to see all the addresses or all the contracts associated with that particular def5 protocol that particular projects uh labor cloud is very useful for you to kind of know what are the moving parts of that particular uh protocol or that particular Def and um so token approval token approval is very important uh because if you participate in any protocol that allows them to move your token uh it's a risk as well essentially you're giving people permission to go inside a pocket and take out some of this token so token approval will allow you to check your particular address and what tokens that you have approved different protocols at moving uh from moving your token so this tool allow you to check which access you have given and also revoke them as you need so this tool is very very useful uh I hope people use them more often so that you can understand uh who has access to your funds or who has the rights to move your funds and if those are you're not comfortable with you can revoke them for developers as well um can I see a hands of the developers here yep so developers uh we have a lot of developers tooling uh we have our team here that works really really closely with uh smart contract uh verification as well um so if you deploy anything onto the blockchain uh and uh to show people that your deployment or your contract is actually what it is doing we have this contract smart contract verification tool you're able to match your source code to the bite code that you Deploy on chain and then that will give confidence to your users in terms of what your contract is actually doing so this smart contract verification to is awesome uh we spent a lot of time to uh Rectify it so we support a lot of different proxies as well and uh some high level uh standards that that we introduced as well um the other is developer API we have uh quite a robust API system uh and uh we recently updated to uh the docs as well uh you're able to use the API use the data stream and then build out your own product uh there is also the contract different Checker uh like for example they you have a couple of similar defi protocols that uh being introduced you by somebody you would want to know what is the difference between both of them what they are doing uh differently so you can use this tool to compare both source code and then understand exactly what you are going into and understand what a project is actually doing okay um moving on to some of our Advanced uh feature one of them that we introduced recently is the uh Advanced filter feature uh where it gives you very very granular filtering options uh from addresses from method IDs from transaction types even the amount uh you're able to filter uh this to is really really helpful uh for me personally as well uh because if you interact with a lot of protocol if you interacted with a lot of addresses you would want a summary or want a filter to kind of look at uh the address that you're interacted with uh how many of them uh that has actual value and uh you can go back and search and you can also uh search other addresses as well um yeah so you don't need to be very very technical uh to use this filter it's just a couple of clicks away uh and it's really really quick uh our team focus on performance as well so this to it's it's really good if you if you guys uh uh want speed and one performance um other than that uh AI has been uh talking point as well uh so we utilize AI to help uh users so code reader uses open AI language model and uh it understands a smart contract uh thoroughly so you could ask code reader any questions like um what does this contract do and um how can I uh is there a uh owner function or is there a uh Whit list function and the contract will answer you but uh and decode reader will answer you um PSA uh it's uh the result the results are informational so please do a couple more research before you decide onto something while using Code Reader um yeah um our latest product is also the metadata API so this one is actually very very helpful is because uh you're able to use our API to uh return a status of a particular address so this one is very helpful in terms of uh for example if you are building an application and you are interacting with addresses you would want to know if this addresses is clean or if this addresses is associated with certain hex or fishing uh previously you could use our metadata API to check an address or check any label Associated to that address and then you can get a better Clarity on what is happening and uh and yeah basically stay safe uh with our metadata API so uh we also returns label you can also understand that okay this address is in what particular category um yeah uh yeah to wrap it up uh we had we introduced a tool page this tool page will have all the tools that I mentioned uh and more of it uh that you can it's it's Consolidated in one page uh it's easier for you to uh jump across and uh explore yeah I think that's about it uh I'm open for questions uh if anybody has any any questions from the floor it's a good chance to ask kav question since you guys are here oh yeah there's one up there hi good morning uh thank you for giving a very informative uh talk on E scan so I'm uh my name is Clemen I'm a defi user I've been in crypto I think the past one to two years so ether scan has been one of the first uh tools that I used to look at all the transaction but I think over the past year or two we've seen more and more uh analytics too for wallet to view transactions such as dbank that here and a few other I just wondering if maybe just can have any intention or plans to make it maybe more I would say new user friendly because people who started out with are obviously very familiar but for new users who are coming in one week ago one month ago or maybe in the future may not be as familiar with eer can so just thinking maybe whether has plans for something like that yes definitely we had uh we had plans in terms of uh making easier for users to kind of understand the transaction understand blockchain but at the same time you would also like to provide relatively clear and Clarity to different pages on on E scan like for example address transactions uh onboarding is Rel relatively quick you go to your address you understand different transactions you understand everything that comes in it provides very very detailed clear uh information uh for people to digest uh analytics wise uh we do have our analytics tabs you able to check out but yes to answer your question we have plans to make things much more user friendly any questions and we'll be back soon this one now here hi um yeah so I I'm with hadera which is an evm compatible network but it also has um like a different accounts and transactions model so I'm uh so so for for example evm transactions are just one type of transaction and you have like maybe 20 different other type of transactions as well so is there any plans uh for ether scan to support you know I guess like a different type of transactions model um that would imply things like when token transfers occur it's not necessarily queriable from Json RPC so you know that has implications on the injs as well so where where you at with uh things like that um okay so in order for us to read transaction of course transaction coming in from notes it's very very important like for example if there's an event happening that's where we capture all this data uh we have experience in working with different uh uh transaction type like x uh xc20 from from the uh the moon beam ecosystem so yeah we we do uh work with different type of transactions so if you would like to explore uh for H uh we are open for discussion okay thanks all right oh one more Josh everyone I'm Josh from credit coin so my question will be with the code reader feature that I we just saw this now and also the earlier presentation by coin geeko where there's a lot of outflux of defy tvl so the important question is will the code reader has the ability for anyone to actually put the code of any def project so that allows people like def in before they put their money in will this feature allow them to make better decision whether a D5 platform is good to go or not because I think reason here you see a lot of smart contract exploits and rock so with this feature actually reduce such risk okay the C reader function actually reads the entire source code and basically outline the function uh to you so the question that you ask is very important uh if you ask an open general question of course it wouldn't answer you like is this the best to invest in no it wouldn't answer you but if you if you ask specific question like uh does it has a owner locked function or there is does it has a function that uh basically lock your funds yeah of course the question is not about should I invest it's more like understanding the risk within this platform or whatsoever man yeah so it comes back to the question that you asked uh if you ask some security question very specific security question it could answer you but uh like I said uh you have to do your own more research into it it helps you it it is a tool that helps you but you at the end of the day you have to make more informed decision by by studying more on that thanks yeah thank you we still have time any more questions for Cen all right ladies and gentlemen all right I think that's about it uh it's a lunch time a little bit hungry so yeah thanks all right round of applause for our k