Tag：transaction
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Time：2021-2-16
As a senior siege lion, you must have a tree in your heart, because it can really improve the cognition of the bottom. I hope everyone can have a tree in their heart and have a definite aim in the face of high-frequency interview questions. 01. Tree in blockchain Experience: what impact will the tampering […]
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Time：2021-2-15
Introduction:With the development and improvement of modern technology, life becomes more and more comfortable. Although it used to be impossible to perform complex operations at the same time, computers now make this task very easy. With the development and improvement of modern technology, life becomes more and more comfortable. Although it used to be impossible […]
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Time：2021-2-8
The reason why blockchain application is full of criticism is the high threshold. For example, each transaction needs to consume a certain amount of gas fee. Many users with erc20 token have to save a certain amount of eth in their wallet to pay for the gas fee before using DAPP. The realization of Ethereum […]
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Time：2021-1-23
I’ve written an article before, which mainly summarizes the code of kernal on kaggle:Bitcoin data set on kaggle – using Google big query API to process bitcoin data (1) But in fact, there are not many kernal related to this data set. Many things you want to do are lack of reference and need to […]
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Time：2021-1-22
First two articles:Bitcoin data set on kaggle – using Google big query API to process bitcoin data (1)This paper summarizes the code of kernal on kaggle Getting bigquery bitcoin data with SQL – using Google big query API to process bitcoin data (2)Using the simplest SQL to get raw data Error reporting SQL Write a […]
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Time：2021-1-14
With the advent of BTC system, blockchain technology has been recognized by more and more people in the past 10 years. Blockchain has built the value network foundation in the era of digital economy. In the economic model, consensus mechanism, cryptography and other technical problems behind the blockchain public chain, there has always been a […]
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Time：2021-1-8
What has VITU done in the past April? Vitu.AI The new version includes two important functions. One is the minute level spot back testing and simulation trading, which supports all trading pairs of coin an and poloniex; the other is the third channel of the community, ideas, which provides a place for everyone to observe […]
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Time：2021-1-2
What is nonce? A scalar value equal to the number of transactions sent from this address or, in the case of accounts with associated code, the number of contract creations made by this account All transactions of Ethereum are based on account, which is different from bitcoin based on utxo. Therefore, each transaction needs to […]
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Time：2020-12-24
Note: for the sake of brevity, this article only deals with some key codes and structures. It is recommended to download the source code to see the detailed implementation. 1.1 INTRODUCTION As mentioned in the first article, the goal of this series is to complete the following features: Network connected to bitcoin (includingmainnet, testnet, simnet) […]
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Time：2020-12-24
This is a blog from sequoiadb, our technical partner. The author is Mr. Wang Tao, co-founder and CTO of sequoiadb. Sequoiadb is a transaction database of JSON document type. With extraordinary technical foresight, Wang Tao led the team of sequoiadb to achieve many technical breakthroughs and successes. Why spark Sequoiadb is a NoSQL database, which […]
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Time：2020-12-7
The conventional Ethereum account (EOA) has an unfortunate limitation. Each transaction from the EOA can only interact directly with a single address or contract. This often happens in DAPP interactions, such as “you must unlock x before you can get y”. Contract based accounts (contract wallets) are not subject to this restriction, and transactions can […]
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Time：2020-12-2
A series of translated articles I have put on GitHub:blockchain-tutorialAny subsequent updates will be on GitHub and may not be synchronized here. If you want to run the code directly, you can also run it in the SRC directory from the tutorial repository on clone GitHubmakeThat’s fine. introduction At the beginning of this series, we […]
