We are gradually achieving effective "Proof of Humanity"
PoH is actively used by many projects as a Sybil-Resistance mechanism (e.g. Gitcoin, Worldcoin, Proof of humanity, etc.). While they still have many unsolved issues, innovation is going
1) We want blockchain not only to be a toy for the rich and geeks but to go mainstream. This requires efforts from all sides
Rollup and L2s make Ethereum cheaper
Account abstraction makes Ethereum simpler
PoH makes Ethereum a neutral democratic platform
Oct 15, 2022 • 20 tweets • 5 min read
I haven't looked into Hermez's zkevm solution in-depth (and parts of Hermez's code aren't fully open source yet)
But it's an interesting topic, comparing @Scroll_ZKP and @0xPolygonHermez's zkevm is a very good perspective to help everyone understand the zkVM and zkEVM
1) Basically, @Scroll_ZKP / @PrivacyScaling's zkEVM solution does EVM equivalence by "re-implementing" the entire EVM
All operations of EVM are defined in zkevm-circuits, which require a lot of steps (constraints) to prove
Oct 11, 2022 • 27 tweets • 8 min read
As we all know, the consensus protocol of PoS Ethereum is “Gasper”, which is constructed by applying the Casper FFG (a finality gadget) on top of LMD-GHOST (fork-choice rule)
So if you want to figure out the full Ethereum consensus protocol, it’s necessary to understand these two Ingredients (Casper + Ghost). Besides, these designs are really fun
Oct 6, 2022 • 17 tweets • 3 min read
In this thread, I want to clarify my misunderstanding of consensus mechanisms and clarify their definitions
- PoW, PoS, and PoA are not consensus protocols
- PoW, PoS, and PoA are essentially Sybil resistance mechanisms
- Consensus protocol and consensus mechanism are not equal
- For PoW-based Ethereum, Nakamoto is its consensus protocol
- And for PoS-based Ethereum, Gasper is its consensus protocol
Oct 2, 2022 • 12 tweets • 2 min read
When learning the blockchain consensus mechanism, there is an inescapable concept, which is the "Byzantine Generals Problem"
Around this problem, many solutions were born, some of which were abandoned, others were feasible (and inspired Nakamoto PoW and Ethereum PoS)
1) In the blockchain world, the consensus mechanism is to require all individual nodes (generally the number of nodes will be very large) to agree on a single fact (this single fact is the transaction history)
So in simple terms, the consensus is about reaching an agreement
Sep 25, 2022 • 12 tweets • 3 min read
The next big goal of Ethereum after the merge is sharding (Danksharding)
And because merge and sharding (including other upgrades of Ethereum) work in parallel, sharding has made a lot of progress
1) Danksharding is a new sharding design proposed by @dankrad that focuses on data availability rather than code execution
Sep 24, 2022 • 16 tweets • 4 min read
Some thoughts on Layer 3👇
1) My thinking about layer 3 comes from application-specific blockchains
Similar to @dYdX, there are many dApps (existing and future) that need to be a blockchain instead of a contract (such as 100% on-chain games like @darkforest_eth and @topology_gg)
I have always been very interested in the following five areas, and eager to get in touch with the vast amount of knowledge and talent people associated with them👇
- Neuroscience and everything about the brain
- The underlying principles of AI and computers
- Space industry and rocket engines
- Blockchain and Decentralized Governance System
- The latest biotech breakthroughs (on extending lifespan)
Jul 12, 2022 • 35 tweets • 10 min read
Ethereum is an innovation at the level of human civilization, just like language and writing
But in the development process of Ethereum, it has also undergone several major changes. To understand Ethereum and participate in it, you need to know its history and evolution
I will sort out the evolution of Ethereum in this thread, as well as the latest roadmap
Given that Ethereum is a very complex economic system, I've only picked out the main components (so there may be some omissions)
Jun 18, 2022 • 41 tweets • 12 min read
#zkEVM has been the holy grail of layer2 and Ethereum scaling and is at the forefront of the blockchain && ethereum
There's a lot of zkp and engineering innovation here, bringing together all the most talented people in the Ethereum ecosystem
This is a very interesting and well-worth research topic, in this thread I will dive into zkEVM and explain the native zkEVM architecture of EF and @Scroll_ZKP
Jun 5, 2022 • 19 tweets • 6 min read
In the long term future, Rollup may be the best way for Ethereum to achieve global scaling. Except for specific alt-L1s, most alt-L1s will (probably) become a Rollup on Ethereum
1) The most essential difference between Rollup and alt-L1 is that Rollup can directly use Ethereum as its own security layer and DA layer, and directly inherit all applications and users in the Ethereum ecosystem
May 29, 2022 • 32 tweets • 8 min read
It feels like magic when I was learning zk-proof
zkp not only has the mathematical beauty but also (as a powerful tool) allows us to build all kinds of zk-apps
I am deeply attracted by zkp. I would like to briefly sort out the history and evolution of zk-proof in this thread, and find out the key points for in-depth exploration
May 26, 2022 • 19 tweets • 4 min read
In the process of learning zkEVM, I re-encounter a lot of EVM knowledge and gained a lot of new understanding. Here are some interesting details worth going deep
1) For EVM, there are two types of accounts, one is EOA (aka external account), and the other is contract account (aka internal account)
EOA is the personal address we use every day, and the internal account is the smart contract address
May 20, 2022 • 5 tweets • 2 min read
跟 @ChihChengLiang 聊完才知道appliedzkp是Privacy and Scaling Exploration（PSE）之前的名字
