What Is a Smart Contract? How Does It Run on a Blockchain? Understand It All, from How It Works to Real-World Applications

In the Web3 world, smart contracts are the foundation of many blockchain applications.

Decentralized finance (DeFi), NFTs, on-chain payments, and DAO governance may all rely on smart contracts to handle some of their business logic.

But smart contracts are not artificial intelligence with independent thinking abilities, and deploying code on-chain does not mean the entire system is automatically secure.

To understand smart contracts, you first need to know what they ar

John464 an hour ago

This post is a reminder for you to Lock tf in

Trenches

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SmartBrother an hour ago

Tonight’s sell-off was triggered in part by CPI data exceeding expectations, but more importantly, MSCI is about to unveil its removal list—reportedly, MicroStrategy and two other crypto treasury companies are highly likely to be dropped. With these two bearish catalysts colliding, the real stress test for Bitcoin and the entire crypto market has only just begun. $BTC $ETH $SOL
Risk warning: The above content does not constitute investment advice. Markets involve risks; exercise caution when investing.

BTC-0.67%

ETH-1.26%

CryptoEye10 minutes ago

market update

LIVE1,400

Hopeful 2 hours ago

What Is Blockchain? Understanding Web3’s Infrastructure and Limitations, from Underlying Technology to Real-World Applications

In the Web3 world, we often hear terms like blockchain, decentralization, smart contracts, and on-chain data.

But what problems does blockchain actually solve? Why can different participants jointly maintain a transaction record without a single central institution having complete control?

Understanding blockchain should go beyond cryptocurrency prices or technical terms. It should start with how it works, its practical value, and its real-world limitations.

1️⃣ Wh

CryptoVision 21 minutes ago

Gate_Square2026-11-10 12:48:03

📣 Gate Square Daily Standouts: November 10
Can BTC hold support, and can the stock rally last? Four creators explore the signals worth watching 👇

🔹 @TheBuzzingBee
BTC support, momentum and rebound scenarios.
🔹 @discovery
S&P 500 market breadth: does the rally have staying power?
🔹 @HighAmbition
KOSPI’s chip leaders, investor flows and participation beyond semiconductors.
🔹 @asiftahsin
BTC’s EMA and Fibonacci resistance: what needs to improve for a stronger recovery?

💬 Which take would you challenge—and why?
Read the posts and join the discussion on Gate Square👇
https://www.gate.com/post
🎁 Selected creators get a 3-day traffic boost + featured placement.
Share your own insights. Your next post could be featured.
Authors’ views. Not investment advice.

BTC-0.67%

SPX500+0.19%

ShrimpBrother111 22 minutes ago

Damn, that's impressive. I just had #Grok Bot call the U.S. Embassy visa hotline for me.
It dialed on its own, navigated the menu, and spoke in English, with a live transcript the whole time.
I used to have to look up the number, wait in line, and brace myself to speak English. Now, I can get it done with one line of text.
Guys, who would you want AI to call for you first? @elonmusk That's impressive

GateUser-44a1b701 2 hours agoBullish

U.S. stocks completely split tonight! Nvidia drops over 5%, AMD rises over 3%, while Tesla “plays dead” on the sidelines

This night in U.S. stocks shattered the idea that “everything rises and falls together.” The Nasdaq plunged 5.5% last Friday, rebounded 2.7% on Monday, and tonight opened down 0.83%, briefly surged into positive territory near 25,285, then quickly retreated, falling about 0.8% to around 25,040. The index looks to be merely trading weakly in a range, but individual stocks have split into two camps: Nvidia fell over 5% to $168.78, AMD briefly rose more than 5% intraday to a n

NVDA-0.35%

TSLA+1.15%

AMD-0.16%

AVGO+0.32%

NAS100-0.07%

Cryptoluter an hour ago

**$INIT /USDT Perp – "Parabolic Breakout – Long"**
Trading Plan Long $INIT
Entry: 0.25623
SL: 0.24089
TP1: 0.27367
TP2: 0.28296
INIT is up an explosive +88.06%. MACD is highly elevated but bullish; targeting a retest of the 0.27367 local high. Use tight risk management due to extreme volatility..
#ShareWeekly.

INIT-1.74%

CryptoVision 26 minutes ago

📝 Gate Square Newcomer Creator Rewards | Earn 0.1 USDT per post, with double exposure for 14 days!
Newcomers earn rewards as soon as they post, with up to 0.5 USDT available per day! The more you post, the more you earn!

🏆 The 11/9 Top Newcomer Creators List Is Here!
Congratulations to these 3 creators, each of whom will receive a 100 USDT position experience voucher!
@蓝哥blue
@Futures King
@KriptoHeadz

🚀 Newcomer benefits are still available. Post now to claim rewards and unlock traffic support!

Join now 👉 https://www

GateSquare2026-11-10 13:52:00

blackuelyramoonan hour ago

U.S October CPI will inflation data reshape rate cut expectations?

LIVE2,199

borovik.eth an hour ago

Bitcoin just dropped under $73,000
BTC is now down 10% since Election Day

BTC-0.67%

CryptoVision 20 minutes ago

GateLive2026-11-10 01:27:18

🌈 Gate Live Streaming Inspiration - Nov.10

Today's Topic Recommendations:
🔹Is the BTC Rebound Just an Illusion? Analysts Say Spot Buying Remains Weak While Whales Keep Sending Tokens to Exchanges. Is Another Wave of Selling Pressure Coming?
🔹ETH Keeps Attracting Staking Despite Falling Prices! With the staking ratio continuing to climb, are long-term investors buying the dip or locking up assets to hedge against volatility?
🔹Anthropic Could Go Public as Early as November 20! IPO Valuation Expectations Continue to Cool. Can a Mega AI IPO Still Restore Market Confidence?
🔹1,000 AI Agents Build an Entire System in Just 8 Days! Anthropic Unveils Its Most Powerful Models, Fable and Mythos 5.2. Is AI Entering a New Era?
🔹South Korean Stocks Stage a Powerful Comeback! KOSPI Jumps Over 4.5% and SK Hynix Surges 6.7%. Is a New Rally in Korean Stocks Taking Shape?
🔹Goldman Sachs CEO Remains Bullish on Computing Infrastructure! Data Center Demand Continues to Surge. How Much More Upside Is Left in AI Infrastructure Stocks?
🔹Fed Officials Take a More Cautious Tone on Rate Hikes! Could AI-related risks change the policy outlook? How will Warsh balance inflation concerns with tech investment?
🔹What If the Strait of Hormuz Reopens? A Major Shift Could Reshape Global Energy Markets. Which Assets Stand to Benefit Most: Oil, Gold, or BTC?

Pick any topic and go live for a chance to be featured on the homepage!
🔥 More livestream topic ideas and tips: https://www.gate.com/help/community-center/live_chat/49345

BTC-0.67%

ETH-1.26%

SK Hynix+6.69%

GS-0.35%

XAU+0.38%

nghiencrypto 22 minutes ago

Why are financial markets getting hammered across the board after US CPI came in hotter than expected?
Does this mean more rate hikes from the Fed?
Last time the Fed hiked, bitcoin:native caught everyone off guard and ripped higher. This time feels different. This market is getting harder to read.
October US CPI:
- Headline CPI MoM: 0.4% (0.3% expected, 0.6% prior)
- Core CPI MoM: 0.3% (0.2% expected, 0.3% prior)
This release is missing year-over-year comparisons due to last year’s US government shutdown.

BTC-0.67%

ConnectingTheWorld 2 hours ago

How to choose a crypto wallet? What’s the difference between hot and cold wallets? Find the right wallet setup for you based on use cases, security, and asset management

In the Web3 world, wallets are important tools that connect users to the blockchain.

Whether you’re receiving digital assets, participating in DeFi, buying NFTs, or interacting with smart contracts, you may need a wallet.

But a wallet isn’t safer just because it’s more complex, and choosing a cold wallet doesn’t eliminate all risks.

What really matters is what you need the wallet for, how you manage access permissions, and

ThisIsTranslateContent:TroyGodan hour ago

I added more to my BTC position here, with a stop-loss at 70,700. The 3-day chart looks like it’s reached the level… CPI was bearish, but the market hasn’t been as bad as I expected… If the bad news is fully priced in and uncertainty is cleared, this could become the starting point of a rally. Either way, it’s still worth taking a shot. If the market is going to rally, the main uptrend will probably only start when the 3-day candle rolls over—that is, on Thursday. $BTC

BTC-0.65%

AChenBit an hour ago

$ZEC has fallen below the round-number 1000 mark

ZEC+1.29%

She_Moonan hour ago

#GateGlobalComplianceExpansion
Gate’s Global Compliance Expansion: Building Trust, Transparency, and a Stronger Future for Digital Assets
The cryptocurrency industry is entering a new era where innovation alone is no longer enough. Security, transparency, regulatory compliance, and user protection are becoming essential pillars of long-term success. As digital assets continue to attract investors, institutions, and businesses around the world, cryptocurrency exchanges must evolve to meet increasingly sophisticated regulatory expectations.
This is why #GateGlobalComplianceExpansion is an impor

ProfGiants an hour ago

the truth is, when the market is down like this, nothing really feels interesting about crypto and web3 anymore.
you wake up, check your timeline, and it’s almost the same story every day.
-airdrop farming is no longer exciting,
-nft projects are struggling to keep things going,
-memes are finding it difficult to gain traction,
-more projects are beginning to shut down.
some of these projects aren’t shutting down because they have run out of ideas or their products no longer have use cases.
sometimes, the problem is simply that fewer people are using them. daily activity drops, engagement

AIRDROP+0.00%

TheFatCatThatDoesn'tChangeIts 30 minutes ago

In a one-way rally or a one-way plunge, even the “gods” will fall…
As long as you’re trading manually, no one is truly an undefeated champion.
Going from 0 to 99 may take 1 year, 2 years, or even 5 years.
But going from 99 to 0 can take as little as 4 hours.

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