进入区块链的大门 — — 取消钱包授权(第五讲)
前面我们有讲到不同钱包的使用方法,和如何访问Dapp。对于经常访问Dapp和使用DeFi应用的人们来说,若想在DeFi协议上使用代币,‘’代币授权‘’是经常性的步骤。什么是代币授权?以太坊链、EVM链(BSC/HECO/OKExChain/Polygon等)和波场链上的Dapp大都涉及到合约操作,授权即表示允许该合约地址提取用户的代币。Dapp需要访问代币才能需要对其操作。比如你想在uniswap卖掉WBTC,则需要‘’Approve‘’ Uniswap的智能合约访问你钱包内WBTC的权限,然后才能通过第二笔交易把WBTC转换成其他代币。在钱包上面,你可以看到该授权。为了提升用户体验,减少授权次数,Dapp会要求无限授权,即该智能合约有权对钱包内的某个币种有不限量的转移权限。对于靠谱的知名平台,如uniswap等,不会恶意操作转移用户的钱包资产。如果该Dapp一开始就是恶意的,则该钱包对于已经授权该平台的所有币种都有极大的安全隐患。即便是成熟的项目,也有可能存在漏洞而被攻击者利用。所以一旦用户给Dapp授权,钱包的该代币就会陷入风险。 虽然硬件钱包可以保护私钥,并且没有人能绕过硬...
进入区块链的大门 — — 网页插件钱包(第三讲)
我们前面讲到了加密货币钱包的概览,上一讲是关于imtoken钱包的使用。本讲的主要内容是Metamask。metamask 有两个版本,一个是在谷歌浏览器chrome的以太坊钱包插件,也是最常用的,另一个是手机的app。这里主要讲最常用的chrome浏览器插件版。 1. 下载谷歌浏览器:https://www.google.com/chrome/ 记住一定要在官网下载,或者在有保障的平台下载,不要下载未知源头下载的谷歌浏览器。 2. 下载metamask的chrome浏览器插件 metamask的官方网站为https://metamask.io/ 点击下载,然后选择Chrome, Install metamask for chrome 这个时候就会跳转到chrome商店然后添加插件到chrome浏览器就可以了。 安装完成后,浏览器的插件栏会出现metamask小狐狸图标,安装完成可以开始使用。 3. 开始使用生成钱包根据引导一步一步走,点击”开始使用”2. 导入或者创建 根据你的钱包习惯,喜欢用自己老的钱包去作为metamask钱包的话,可以直接用助记词导入钱包,在metamas...
进入区块链的大门 — — 硬件钱包的使用(第四讲)
我们前面讲到了加密货币钱包的概览,imtoken和metamask的使用。本讲的主要内容是硬件钱包 — ledger nano X的使用。 为什么选择Ledger? Ledger是法国的硬件钱包品牌,是目前销量最大的硬件钱包。产品经过了市场和安全机构的验证,使用方便。Ledger目前有三款产品,是ledger nano S,Ledger nano S plus 和 ledger nano X。Ledger nano S 只能连接电脑端并且最多安装3个币种的app。Ledger nano X 可以连接电脑端,并且可以通过蓝牙连接手机端。存储空间大,可以同时安装几十个app。因为Ledger nano X可以连接手机,适合对于操作频繁的用户购买。Ledger nano S plus则是 Ledger nano S的升级款,也可以同时安装几十个app,但是无法通过蓝牙与手机连接。在这里我推荐用户购买ledger nano S plus 或者ledger nano X,用户可以按需购买。为了保证安全,这里硬件设备只推荐从官网购买,因为无法判定其他经销商的真伪。避免因为买到假的硬件钱包或者...
<100 subscribers
进入区块链的大门 — — 取消钱包授权(第五讲)
前面我们有讲到不同钱包的使用方法,和如何访问Dapp。对于经常访问Dapp和使用DeFi应用的人们来说,若想在DeFi协议上使用代币,‘’代币授权‘’是经常性的步骤。什么是代币授权?以太坊链、EVM链(BSC/HECO/OKExChain/Polygon等)和波场链上的Dapp大都涉及到合约操作,授权即表示允许该合约地址提取用户的代币。Dapp需要访问代币才能需要对其操作。比如你想在uniswap卖掉WBTC,则需要‘’Approve‘’ Uniswap的智能合约访问你钱包内WBTC的权限,然后才能通过第二笔交易把WBTC转换成其他代币。在钱包上面,你可以看到该授权。为了提升用户体验,减少授权次数,Dapp会要求无限授权,即该智能合约有权对钱包内的某个币种有不限量的转移权限。对于靠谱的知名平台,如uniswap等,不会恶意操作转移用户的钱包资产。如果该Dapp一开始就是恶意的,则该钱包对于已经授权该平台的所有币种都有极大的安全隐患。即便是成熟的项目,也有可能存在漏洞而被攻击者利用。所以一旦用户给Dapp授权,钱包的该代币就会陷入风险。 虽然硬件钱包可以保护私钥,并且没有人能绕过硬...
进入区块链的大门 — — 网页插件钱包(第三讲)
我们前面讲到了加密货币钱包的概览,上一讲是关于imtoken钱包的使用。本讲的主要内容是Metamask。metamask 有两个版本,一个是在谷歌浏览器chrome的以太坊钱包插件,也是最常用的,另一个是手机的app。这里主要讲最常用的chrome浏览器插件版。 1. 下载谷歌浏览器:https://www.google.com/chrome/ 记住一定要在官网下载,或者在有保障的平台下载,不要下载未知源头下载的谷歌浏览器。 2. 下载metamask的chrome浏览器插件 metamask的官方网站为https://metamask.io/ 点击下载,然后选择Chrome, Install metamask for chrome 这个时候就会跳转到chrome商店然后添加插件到chrome浏览器就可以了。 安装完成后,浏览器的插件栏会出现metamask小狐狸图标,安装完成可以开始使用。 3. 开始使用生成钱包根据引导一步一步走,点击”开始使用”2. 导入或者创建 根据你的钱包习惯,喜欢用自己老的钱包去作为metamask钱包的话,可以直接用助记词导入钱包,在metamas...
进入区块链的大门 — — 硬件钱包的使用(第四讲)
我们前面讲到了加密货币钱包的概览,imtoken和metamask的使用。本讲的主要内容是硬件钱包 — ledger nano X的使用。 为什么选择Ledger? Ledger是法国的硬件钱包品牌,是目前销量最大的硬件钱包。产品经过了市场和安全机构的验证,使用方便。Ledger目前有三款产品,是ledger nano S,Ledger nano S plus 和 ledger nano X。Ledger nano S 只能连接电脑端并且最多安装3个币种的app。Ledger nano X 可以连接电脑端,并且可以通过蓝牙连接手机端。存储空间大,可以同时安装几十个app。因为Ledger nano X可以连接手机,适合对于操作频繁的用户购买。Ledger nano S plus则是 Ledger nano S的升级款,也可以同时安装几十个app,但是无法通过蓝牙与手机连接。在这里我推荐用户购买ledger nano S plus 或者ledger nano X,用户可以按需购买。为了保证安全,这里硬件设备只推荐从官网购买,因为无法判定其他经销商的真伪。避免因为买到假的硬件钱包或者...
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Sui is the first permissionless Layer 1 blockchain with POS (proof of stake) consensus mechanism designed from the ground up to enable creators and developers to build experiences that cater to the next billion users in web3. It uses the Move programming language to define assets as objects that may be owned by an address.

Developers on Sui write smart contracts with the Sui Move. Sui Move is an upgraded version of Move. Sui Move addressed the embedding and depicted problems on Move. The Move is based on the Rust programming language. MOVE was designed for the Diem blockchain by Facebook, which serves the function of implementing smart contracts and custom transactions. Origins of Move largely arise from the known issues in the existing blockchain programming languages such as Solidity, which has security and verifiability issues. Any asset in Move can be represented by or stored within resources while scarcity is enforced by default since structs cannot be duplicated.

Announced Date: Dec 6, 2021
Money Raised: $36M
Lead Investor: a16z
Famous Investors: NFX, Scribble Ventures, Redpoint, Lightspeed Venture Partners, Electric Capital, Samsung NEXT, Slow Ventures, Standard Crypto, Coinbase Ventures
Announced Date: Currently Pending
Estimated Money Raise: $200M
Investor (rumored / Known): FTX Ventures
A total of $236 million is expected to be raised.

The Figure below shows the high-level interactions between a client and Sui authorities to commit a transaction.
A user with a private signing key creates and signs a user transaction to mutate objects they own, or shared objects, within Sui. Subsequently, user signature keys are not needed, and the remaining of the process may be performed by the user client or a gateway on behalf of the user (denoted as a keyless operation in the diagram).
The user transaction is sent to the Sui authorities, each checks it for validity, and upon success signs it and returns the signed transaction to the client. The client collects the responses from a quorum of authorities to form a transaction certificate.
The transaction certificate is then sent back to all authorities, and if the transaction involves shared objects it is also sent to a Byzantine agreement protocol operated by the Sui authorities. Authorities check the certificate, and in case shared objects are involved also wait for the agreement protocol to sequence it in relation to other shared object transactions, and then execute the transaction and summarize its effects into a signed effects response.
Once a quorum of authorities has executed the certificate its effects are final (denoted as finality in the diagram). Clients can collect a quorum of authority responses and create an effects certificate and use it as proof of the finality of the effects of the transaction.

Token’s name: SUI
Total supply: 10,000,000,000.
Token Utility:
SUI can be staked within an epoch in order to participate in the proof-of-stake mechanism.
SUI is the asset denomination needed for paying the gas fees required to execute and store transactions or other operations on the Sui platform.
SUI can be used as a versatile and liquid asset for various applications including the standard features of money – a unit of account, a medium of exchange, or a store of value – and more complex functionality enabled by smart contracts, interoperability, and composability across the Sui ecosystem.
SUI token plays an important role in governance by acting as a right to participate in on-chain voting on issues such as protocol upgrades.
The Sui economy contains three main participants:
Users submit transactions to the Sui platform in order to create, mutate, and transfer digital assets or interact with more sophisticated applications enabled by smart contracts, interoperability, and composability.
SUI token holders bear the option of delegating their tokens to validators and participating in the proof-of-stake mechanism. SUI owners also hold the right to participate in Sui’s governance.
Validators manage transaction processing and execution on the Sui platform.
The Sui economy has five core components:
The SUI token is the Sui platform’s native asset.
Gas fees are charged on all network operations and used to reward participants of the proof-of-stake mechanism and prevent spam and denial-of-service attacks.
Sui’s storage fund is used to shift stake rewards across time and compensate future validators for storage costs of previously stored on-chain data.
The proof-of-stake mechanism is used to select, incentivize, and reward honest behavior by the Sui platform’s operators – i.e. validators and the SUI delegators.
On-chain voting is used for governance and protocol upgrades.
Throughout, we use the visual representation in the following figure to aid the discussion.
SUI Token Flow:

Core Members of Mysten Labs:

Sui was founded by Mysten Labs. Most of them worked for Diem blockchain and Move programming language before. Four of them worked at META (Facebook) before. Although the team members have the same experience as Aptos team members, they have clarified that there is no relationship between the two projects. The Mysten Labs Team also has many experienced designers, analysts, engineers, and so on. Obviously, it is a professional team, with the ability to develop the Sui very well.
Both are committed to solving the blockchain trilemma
Both use Move for their smart contract programming language, but Sui’s Move is a little bit different from Apto’s
Parallel transaction execution and consensus (for lower latency and higher throughput) based on block software transactional memory (“STM”) – instead of in-order transactions and sequential execution of blocks in other L1 designs
State synchronization to optimize data availability
SDK, API for improving DX/UX
Tier 1 Venture Investor Cap Table
Valuation (more or less)
Sui released its whitepaper, but Aptos did not
Sui’s Move is a little bit different from Aptos’s Move
Gas Mechanism: Sui is able to keep gas prices low and predictable while incentivizing validators to optimize transaction processing and prevent denial of service (“DoS”) attacks.
Sui’s SDK is pay more effort on game and NFT, and Aptos’ SDK is pay more effort on DX/UX.
For Sui, the storage fees are paid separately to transaction execution.
There are only two projects (Sui wallet and Ethos) that are known on the Sui network, but there are more than one hundred projects on Aptos economy.
In the layer 1 blockchain field, Sui is an excellent blockchain:
Strong backers: it was invested by a16z, FTX Ventures, Coinbase Ventures, and many famous investors. These investors have supported many famous projects and they also have many professional analysts to choose good projects.
Excellent team: all team members are experienced and worked at famous companies and projects before. I'm sure that they have enough strength to develop Sui.
High performance: as written in docs, an unoptimized single-worker Sui validator running on an 8-core M1 Macbook Pro can execute and commit 120,000 token transfer transactions per second (TPS). Throughput scales linearly with the number of cores–the same machine processes 25,000 TPS in a single core configuration. High performance can give users very good experiences.
Good programming language: Sui uses Move as its programming language. The Move is designed to solve the safety problems for assets on the blockchain.
However, Sui is facing a strong opponent, Aptos. Aptos began to start a few months earlier than Sui, and Aptos have these points better than Sui:
~2x community/users (by Discord members and Twitter followers);
~3x developer activity (as measured by GitHub stargazers);
Similar throughput magnitudes, but largely unclear at this point;
More metrics can be analyzed after the mainnet, such as TVL, active users (wallet addresses), active nodes, minimum staking requirements, etc.
Although Sui is a good Layer 1 blockchain and Sui’s design (the storage fees are paid separately to transaction execution) fills the blank of current Layer 1 blockchains, it still has some shortcomings compared to Aptos. If Sui wants to have the same valuation as Aptos in the series B funding round, it needs to pay more effort into expanding the size of the community and incentivize more developers to build on Sui.
Written by: Lucio Lyu
Twitter: @imLucio_eth
Sui is the first permissionless Layer 1 blockchain with POS (proof of stake) consensus mechanism designed from the ground up to enable creators and developers to build experiences that cater to the next billion users in web3. It uses the Move programming language to define assets as objects that may be owned by an address.

Developers on Sui write smart contracts with the Sui Move. Sui Move is an upgraded version of Move. Sui Move addressed the embedding and depicted problems on Move. The Move is based on the Rust programming language. MOVE was designed for the Diem blockchain by Facebook, which serves the function of implementing smart contracts and custom transactions. Origins of Move largely arise from the known issues in the existing blockchain programming languages such as Solidity, which has security and verifiability issues. Any asset in Move can be represented by or stored within resources while scarcity is enforced by default since structs cannot be duplicated.

Announced Date: Dec 6, 2021
Money Raised: $36M
Lead Investor: a16z
Famous Investors: NFX, Scribble Ventures, Redpoint, Lightspeed Venture Partners, Electric Capital, Samsung NEXT, Slow Ventures, Standard Crypto, Coinbase Ventures
Announced Date: Currently Pending
Estimated Money Raise: $200M
Investor (rumored / Known): FTX Ventures
A total of $236 million is expected to be raised.

The Figure below shows the high-level interactions between a client and Sui authorities to commit a transaction.
A user with a private signing key creates and signs a user transaction to mutate objects they own, or shared objects, within Sui. Subsequently, user signature keys are not needed, and the remaining of the process may be performed by the user client or a gateway on behalf of the user (denoted as a keyless operation in the diagram).
The user transaction is sent to the Sui authorities, each checks it for validity, and upon success signs it and returns the signed transaction to the client. The client collects the responses from a quorum of authorities to form a transaction certificate.
The transaction certificate is then sent back to all authorities, and if the transaction involves shared objects it is also sent to a Byzantine agreement protocol operated by the Sui authorities. Authorities check the certificate, and in case shared objects are involved also wait for the agreement protocol to sequence it in relation to other shared object transactions, and then execute the transaction and summarize its effects into a signed effects response.
Once a quorum of authorities has executed the certificate its effects are final (denoted as finality in the diagram). Clients can collect a quorum of authority responses and create an effects certificate and use it as proof of the finality of the effects of the transaction.

Token’s name: SUI
Total supply: 10,000,000,000.
Token Utility:
SUI can be staked within an epoch in order to participate in the proof-of-stake mechanism.
SUI is the asset denomination needed for paying the gas fees required to execute and store transactions or other operations on the Sui platform.
SUI can be used as a versatile and liquid asset for various applications including the standard features of money – a unit of account, a medium of exchange, or a store of value – and more complex functionality enabled by smart contracts, interoperability, and composability across the Sui ecosystem.
SUI token plays an important role in governance by acting as a right to participate in on-chain voting on issues such as protocol upgrades.
The Sui economy contains three main participants:
Users submit transactions to the Sui platform in order to create, mutate, and transfer digital assets or interact with more sophisticated applications enabled by smart contracts, interoperability, and composability.
SUI token holders bear the option of delegating their tokens to validators and participating in the proof-of-stake mechanism. SUI owners also hold the right to participate in Sui’s governance.
Validators manage transaction processing and execution on the Sui platform.
The Sui economy has five core components:
The SUI token is the Sui platform’s native asset.
Gas fees are charged on all network operations and used to reward participants of the proof-of-stake mechanism and prevent spam and denial-of-service attacks.
Sui’s storage fund is used to shift stake rewards across time and compensate future validators for storage costs of previously stored on-chain data.
The proof-of-stake mechanism is used to select, incentivize, and reward honest behavior by the Sui platform’s operators – i.e. validators and the SUI delegators.
On-chain voting is used for governance and protocol upgrades.
Throughout, we use the visual representation in the following figure to aid the discussion.
SUI Token Flow:

Core Members of Mysten Labs:

Sui was founded by Mysten Labs. Most of them worked for Diem blockchain and Move programming language before. Four of them worked at META (Facebook) before. Although the team members have the same experience as Aptos team members, they have clarified that there is no relationship between the two projects. The Mysten Labs Team also has many experienced designers, analysts, engineers, and so on. Obviously, it is a professional team, with the ability to develop the Sui very well.
Both are committed to solving the blockchain trilemma
Both use Move for their smart contract programming language, but Sui’s Move is a little bit different from Apto’s
Parallel transaction execution and consensus (for lower latency and higher throughput) based on block software transactional memory (“STM”) – instead of in-order transactions and sequential execution of blocks in other L1 designs
State synchronization to optimize data availability
SDK, API for improving DX/UX
Tier 1 Venture Investor Cap Table
Valuation (more or less)
Sui released its whitepaper, but Aptos did not
Sui’s Move is a little bit different from Aptos’s Move
Gas Mechanism: Sui is able to keep gas prices low and predictable while incentivizing validators to optimize transaction processing and prevent denial of service (“DoS”) attacks.
Sui’s SDK is pay more effort on game and NFT, and Aptos’ SDK is pay more effort on DX/UX.
For Sui, the storage fees are paid separately to transaction execution.
There are only two projects (Sui wallet and Ethos) that are known on the Sui network, but there are more than one hundred projects on Aptos economy.
In the layer 1 blockchain field, Sui is an excellent blockchain:
Strong backers: it was invested by a16z, FTX Ventures, Coinbase Ventures, and many famous investors. These investors have supported many famous projects and they also have many professional analysts to choose good projects.
Excellent team: all team members are experienced and worked at famous companies and projects before. I'm sure that they have enough strength to develop Sui.
High performance: as written in docs, an unoptimized single-worker Sui validator running on an 8-core M1 Macbook Pro can execute and commit 120,000 token transfer transactions per second (TPS). Throughput scales linearly with the number of cores–the same machine processes 25,000 TPS in a single core configuration. High performance can give users very good experiences.
Good programming language: Sui uses Move as its programming language. The Move is designed to solve the safety problems for assets on the blockchain.
However, Sui is facing a strong opponent, Aptos. Aptos began to start a few months earlier than Sui, and Aptos have these points better than Sui:
~2x community/users (by Discord members and Twitter followers);
~3x developer activity (as measured by GitHub stargazers);
Similar throughput magnitudes, but largely unclear at this point;
More metrics can be analyzed after the mainnet, such as TVL, active users (wallet addresses), active nodes, minimum staking requirements, etc.
Although Sui is a good Layer 1 blockchain and Sui’s design (the storage fees are paid separately to transaction execution) fills the blank of current Layer 1 blockchains, it still has some shortcomings compared to Aptos. If Sui wants to have the same valuation as Aptos in the series B funding round, it needs to pay more effort into expanding the size of the community and incentivize more developers to build on Sui.
Written by: Lucio Lyu
Twitter: @imLucio_eth
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