What Are Smart Contracts? How Do They Work, and Why Do Risks Still Exist?

In the Web3 world, smart contracts are the foundation of many blockchain applications. From DeFi lending to NFT trading, many operations rely on code for automatic execution. But smart contracts are not absolutely secure. Understanding how they work is essential to seeing the risks behind their efficiency.

First, what is a smart contract?

A smart contract is a program deployed on a blockchain that processes transactions and state changes according to predefined rules. It is not a legal contract in the traditional sens

In BTC Trading, How Do You Set a Reasonable Risk-Reward Ratio? Win Rate Isn’t Everything!

In BTC trading, many people pay special attention to win rate, believing that as long as they make the right call often enough, they can keep making money. In reality, however, win rate is not the only factor that determines trading results. A trading system with a low win rate but a reasonable risk-reward ratio may still maintain positive expectancy over the long term.

So, what is the risk-reward ratio?

First, understand the concept. The risk-reward ratio is the ratio between potential profit and pote

The G7 foreign ministers issued another statement in Paris, this time without even sanctions or military deployments—who are they trying to scare with just a piece of paper!
Honestly, I’ve heard “opposing unilateral changes to the status quo by force or coercion” so many times I can recite it by heart. They issue it every year, every time, then carry on as usual
The statement says China’s activities in waters east of Taiwan threaten regional stability, freedom of navigation, and the safety of international shipping, but it can’t come up with a single figure showing which shipping route or vess

How Is DeFi Reshaping Traditional Finance? Understand How It Works and Its Risks, from Decentralized Trading to On-Chain Lending

Traditional finance relies on intermediaries such as banks and exchanges to provide services, while DeFi (decentralized finance) seeks to use blockchain and smart contracts to let users participate directly in trading, lending, and other financial activities.

DeFi’s core value is turning some financial rules into verifiable, executable smart contracts.

I. How Does DeFi Work?

DeFi typically consists of smart contracts, digital assets, and blockchains. After connec

【November 12, 2026 BTC/ETH Price Analysis and Trading Plan】

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I. Market Snapshot (Beijing Time 17:22)
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BTC: approximately 73,600 USDT (24h range 73,184 – 74,750, 7-day change -8%)
ETH: approximately 2,050 USDT (24h range 2,036 – 2,104, 7-day change -15%)
Fear & Greed Index: 27 (Fear)
BTC options max pain: 74,000 (expires today)

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II. Price Analysis
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【BTC】
- Bearish on the daily timeframe: price is below the SMA20 (approximately 77,827) and SMA50 (approximately 81,205); RSI14 is just 35, in weak territory, bu

The key to bringing AI agents into real-world use is not how powerful the models are, but how complete the workflows are

AI agents are becoming an important direction for the development of the digital economy, but one question is worth considering: Why do some AI products seem highly capable yet still require a great deal of human intervention when used for actual work?

The reason is that understanding a problem is only the starting point; delivering a task from start to finish is where the real value lies.

A practical AI workflow usually involves several steps: gathering information, anal

NDX100 has successfully reclaimed MA200,

The previous two times it broke below and then reclaimed it, healthy rallies followed!
This time seems a little different: the chart shows a dense cluster of candlesticks stacked above.
The environment and influencing factors are different, so I won’t go into detail. Everyone knows the overall environment for AI-related stocks and what has happened in recent days.

So, what probability do you think there is that this technical reclaim of the bull-bear dividing line will lead to a sustained rally this time?#黄仁勋或遭罢免

Why Won’t Digital Identity in the Future Require Repeatedly Submitting Personal Information?

In the digital economy, we prove who we are every day.

Registering on a platform requires filling out personal details, applying for financial services requires submitting identity information, verifying your age may require uploading an ID, and accessing different systems may require repeated identity checks.

The problem is that often, we only need to prove one specific thing, yet we have to provide far more information than necessary.

For example, a website may only need to confirm that you have

Weak, too weak! Gold broke below 4000 in the early hours and has been heading down ever since, currently quoted at 3940! Our short positions have also reached the target we mentioned in this morning’s briefing. Close out all short-term positions; the swing target remains 3860!

$ANTHROPIC Downward momentum has faded; adding to long positions. Added to several assets today. To manage risk, I plan not to add any more positions over the next 24 hours. #Gate直通IPO第三期Anthropic #美国就业数据今晚公布 #作手分析

Big Red Packet Join Everyone

https://gate.com/live/video/92647074db94432e895b1fe680c2e166?type=live&stream_id=92647074db94432e895b1fe680c2e166&session_id=92647074db94432e895b1fe680c2e166-1794437110&ref=VLJMB14JUQ&ref_type=104

I don't care; anyway, I took on too much again. #美国就业数据今晚公布 $BTC ‌

Watching $DOT $DOT struggle to establish a foothold is painful. Every time it approaches those moving averages, sellers show up and push it back down. It really feels like the path of least resistance is another move lower. Take-profit: 0.8032 Stop-loss: 0.8718 Popular coins:
$MAGMA : Current price 0.27891 - 24-hour change: +10.13%
$ETH : Current price 2,045.65 - 24-hour change: -0.46%

$XAUUSD
The second trade shared publicly in today's livestream 📶 was also our first trade this evening
Long at 3926
Stop-loss at 3913.74
It's already nearly 190 points in profit, that is, 19 points
If you’re happy to watch, I’m happy to share
If you’re not happy to watch, I’m still happy to share
After all, I’m testing my own trading system, not putting on a monkey show for anyone’s amusement. ‌

Why Are Cross-Chain Bridges Frequent Targets of Attacks? 5 Security Risks Behind Cross-Chain Transfers

In the Web3 world, users can transfer assets from one blockchain to another through cross-chain bridges. But cross-chain transfers are not as simple as moving tokens from one wallet to another. They involve multiple steps, including asset locking, information verification, and contract execution. Problems at any critical step can pose risks.

First, contract logic is complex. Cross-chain bridges need to coordinate operations across different blockchains. The more complex the contract code, t

$BTC
-4 daily closed below 2025 low
-Price is at the final edge of daily cloud
-Price chopping below Sept low
- $DXY bullish $USDT.D bullish
- $BTC.D bullish likely 62.6% coming
-CT longing every dip 🥲
Every long/short post on X at this point is just flipping a coin

How Does Layer 2 Solve Blockchain Scalability? From Rollups to Multichain Applications, Understanding the Value and Limitations of Scaling Technologies

As Web3 applications continue to develop, blockchains face challenges such as transaction congestion, high fees, and limited processing speeds. Layer 2 (L2 networks) is an important technological direction developed to address these issues.

The core idea behind Layer 2 is to move some transaction execution to a secondary network, while using the underlying blockchain to provide corresponding security guarantees.

I. Why Is Layer 2 Needed?

Pu

AI × Web3: As Information Grows, Clear Judgment Becomes Truly Scarce

The digital economy has never lacked information. The real challenge is identifying important signals from a vast sea of information and turning them into valuable insights.

In the Web3 industry, project announcements, protocol updates, community discussions, and on-chain data emerge every day. Information is becoming increasingly accessible, but more information does not mean decision-making gets easier. On the contrary, data from different sources, of varying quality and updated at different rates, can consume a great dea