ArtofBlockchain

Difficulty - Medium

Total Plays - 7

Allowed Time - 10 sec

Best time - 3.010

5. Why is delegatecall risky?

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Explanation:
delegatecall executes callee code in the caller’s storage context, leading to storage collisions and privilege escalation. This is a key attack vector in proxy contracts.

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Arif
@ofh3VYy • Nov 25, 2025

Nov 25, 2025

260

🚀 I Want to Become a StarkNet/Cairo Auditor — Here’s My Starting Point & I’d Love a Roadmap

I’m transitioning my focus toward StarkNet and Cairo security auditing and would appreciate guidance from anyone experienced in the ecosystem.What I know so far:• Solidity development• Hardhat, Foundry, and advanced...

Like 3 Replies 4
Tushar Dubey
@DataChainTushar • Nov 21, 2025

Nov 21, 2025

384

Why Do Tests Pass on Hardhat/Anvil Forks but Break on Mainnet? What Hidden Differences Are We Missing?

I’ve hit this pain point so many times that I genuinely stopped trusting “all tests passing” unless I run them against a real mainnet RPC.Here’s the pattern: everything works fine...

Like 3 Replies 5
Ayush Verma
@NawtFound404 • Nov 20, 2025

Nov 20, 2025

362

Silent Fails in Smart-Contract Access Control: What Teams Miss Until It’s Too Late

While practicing with Slither/Mythril and extracting CFGs from Solidity contracts, I keep noticing a pattern:Teams don’t get hacked because of complex bugs.They get hacked because of small access-control oversights.Examples I...

Like 3 Replies 3
Akemi R
@snappy-bullet • Nov 20, 2025

Nov 20, 2025

366

Got removed from my first blockchain job — now scared to ask for help again

This is my second blockchain developer job, and honestly, I’m still a bit shaken from the first one — I got kicked off partly because I asked too many questions...

Like 3 Replies 5
Abasi T
@ggvVaSO • Dec 27, 2025

Dec 27, 2025

384

Struggling with Hardhat debugging as a junior — how do seniors validate Solidity state transitions, revert paths, and storage changes without relying on console.log spam?

I’ve been building my first few smart contracts using Hardhat, and whenever something breaks, I fall back to spamming console.log until it somehow works. It feels messy, and honestly, I...

Like 3 Replies 5
Difficulty - Medium

Total Plays - 11

Allowed Time - 10 sec

Best time - 2.399

What’s the fastest proof path for new smart-contract auditors?

Tip: Click "Play" to reveal options and start playing.

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Explanation:
Participating in open audit contests on platforms like Code4rena builds verified proof and community trust.

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Difficulty - Medium

Total Plays - 8

Allowed Time - 10 sec

Best time - 5.251

What distinguishes Slither from MythX?

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Explanation:
Slither performs static code analysis; MythX simulates runtime—using both covers complementary vulnerabilities.

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Difficulty - Medium

Total Plays - 8

Allowed Time - 10 sec

Best time - 0.966

Which metric shows DAO user re-activation success?

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Explanation:
High voter turnout proves community re-engagement—an LSI metric linking retention to decentralized decision activity.

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Difficulty - Medium

Total Plays - 8

Allowed Time - 10 sec

Best time - 8.679

What’s the safest pattern for upgradeable contracts?

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Explanation:
Transparent proxy separates admin logic from user calls, preventing proxy loops and role confusion.

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Difficulty - Medium

Total Plays - 7

Allowed Time - 10 sec

Best time - 10

What does KYT stand for in crypto compliance?

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Explanation:
KYT (Know Your Transaction) tools continuously track wallet and transaction behavior to spot patterns linked to money laundering or terrorist financing. They flag suspicious activity in real time, helping crypto exchanges and institutions stay compliant with global regulations like FATF’s Travel Rule and EU MiCA, which require active monitoring of on-chain transactions for risk assessment and transparency.

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Difficulty - Medium

Total Plays - 6

Allowed Time - 10 sec

Best time - 10

What’s a DAO PM’s biggest challenge in remote teams?

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#D

Explanation:
DAO PMs manage globally distributed contributors — asynchronous updates ensure aligned execution without meetings.

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Difficulty - Medium

Total Plays - 6

Allowed Time - 10 sec

Best time - 1.077

Which audit confirms token reserves on-chain?

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#D

Explanation:
Proof of Reserves (PoR) is an audit that checks if a crypto exchange truly holds enough on-chain assets to cover all user deposits. It compares wallet balances with total liabilities to confirm solvency. This transparent process builds user and regulatory trust by proving funds actually exist.

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Difficulty - Medium

Total Plays - 4

Allowed Time - 10 sec

Best time - 1.835

Which keyword prevents a function override vulnerability?

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#D

Explanation:
The internal specifier limits access to derived contracts only, reducing attack surface and inheritance misuse.

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Difficulty - Medium

Total Plays - 4

Allowed Time - 10 sec

Best time - 10

Which testing tool supports property-based fuzzing for Solidity?

Tip: Click "Play" to reveal options and start playing.

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#D

Explanation:
Echidna auto-generates random inputs to stress invariants, uncovering deep logic vulnerabilities.

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Tushar Dubey
@DataChainTushar • Nov 13, 2025

Nov 13, 2025

295

As a Multichain QA Engineer, How Do You Manage Test Coverage Drift When ETH Is Stable but Polygon/BSC Keep Failing?

I’m working as a blockchain QA engineer on a multichain DeFi protocol, and our test coverage has started drifting across networks. Ethereum runs are usually stable, but Polygon and BSC...

Like 3 Replies 3
Abdil Hamid
@ForensicBlockSmith • Oct 28, 2025

Oct 28, 2025

313

Live PR review nerves — do seniors secretly judge beginners too harshly?

I’ll be honest — interviews don’t scare me anymore.But that first live Pull Request review at a real job? Terrifying.I’ve heard stories that seniors can be blunt, especially in blockchain...

Like 3 Replies 2
Abhi Shankar
@abhishankar • Mar 22, 2026

Mar 22, 2026

366

About web3 non-tech roles (Finance, consulting, Marketing, operations, etc..)

I was preparing for MBA entrance exams like CAT,SNAP etc to get into a top b school in india. I am going to take gap years to prepare for the...

Like 3 Replies 5
Sayali Bhandari
@SayaliB • Oct 10, 2025

Oct 10, 2025

341

Failed a technical interview for a Blockchain Security Engineer role — need help with cryptography prep

I recently gave a technical interview for a Blockchain Security Engineer position and didn’t make it through. Most of the questions were around cryptography, and I realized that’s where my...

Like 3 Replies 1
Arif
@ofh3VYy • Sep 30, 2025

Sep 30, 2025

444

Am I missing anything major on my resume for a Web3/Blockchain career ?

Hi everyone,I’m a final-year Computer Science undergrad (graduating in 2025) and I’ve been focusing on Blockchain/Web3 development alongside my core CS skills. I’ve attached my current resume for review.I’m curious:Does...

Like 3 Replies 2