Home | ArtOfBlockChain

Latest Trending Most replied

Difficulty - Medium

Total Plays - 1

Allowed Time - 10 sec

Best time - 10 sec

Which gas pattern reduces redundant SSTOREs?

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

#A

#B

#C

#D

Explanation:
State Caching helps optimize gas by storing frequently used state variables in memory instead of repeatedly writing them to the blockchain. Since every SSTORE (state write) costs significant gas, caching reduces redundant storage operations, making smart contracts more efficient and cost-effective.

Leaderboard
Difficulty - Medium

Total Plays - 2

Allowed Time - 10 sec

Best time - 1.794 sec

Which audit confirms token reserves on-chain?

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

#A

#B

#C

#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.

Leaderboard
Difficulty - Medium

Total Plays - 4

Allowed Time - 10 sec

Best time - 1.835 sec

Which keyword prevents a function override vulnerability?

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

#A

#B

#C

#D

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

Leaderboard
DeFiArchitect

@DeFiArchitect • 1d

From Finance to Blockchain: What’s the Smart Way to Transition as a Business Analyst?

I’ve been a Business Analyst in the finance sector for over four years — mainly focused on process optimization, data modeling, and stakeholder management. But I’m now seriously looking to...

7

Replies
Tushar Dubey

@DataChainTushar • 1d

How Do You Balance Automation and Manual Testing in Blockchain Projects?

Our QA team often argues about what to automate in blockchain testing. Unit tests are stable, but once we touch integration or cross-chain flows, we get random RPC errors and...

2

Replies
Tushar Dubey

@DataChainTushar • 1d

How Do You Measure Real ROI from NFT Quest Campaigns as a Web3 Growth Manager?

Hey everyone,I’m currently leading growth for an early-stage NFT project and we’ve experimented with a few community quest campaigns over the past quarter. On paper, the numbers look good —...

2

Replies
Difficulty - Medium

Total Plays - 3

Allowed Time - 10 sec

Best time - 1.498 sec

Which metric best shows DAO member loyalty post-airdrop?

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

#A

#B

#C

#D

Explanation:
Retention captures wallet-level engagement and recurring activity — a Tier-2 metric for real community stickiness.

Leaderboard
Difficulty - Medium

Total Plays - 1

Allowed Time - 10 sec

Best time - 10 sec

Which Solidity feature is riskiest if misused with delegatecall?

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

#A

#B

#C

#D

Explanation:
Delegatecall shares storage between contracts; mismatched layouts can overwrite variables and cause exploits.

Leaderboard
Difficulty - Medium

Total Plays - 4

Allowed Time - 10 sec

Best time - 10 sec

Which testing tool supports property-based fuzzing for Solidity?

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

#A

#B

#C

#D

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

Leaderboard
SmartChainSmith

@SmartChainSmith • 2d

Post-Airdrop DAO Growth — How Do You Retain Users Without Incentives?

Our DAO recently completed a major airdrop, and while we saw a huge spike in wallet activity, participation has since crashed by 78% in 30 days. I’m the growth lead...

2

Replies
MakerInProgress

@MakerInProgress • 2d

How DAO Growth Teams Define Retention After an Airdrop

Right now, I am associated with a DAO. Our DAO finished a big airdrop and wallet activity fell after two weeks. As a Growth Manager, I need to define retention...

2

Replies
CryptoSagePriya

@CryptoSagePriya • 2d

What DeFi Startups Expect from Community Managers Who Track On-Chain Engagement

I’ve been handling community growth for an early-stage NFT + DeFi project where we want to move beyond just Discord numbers. Founders now ask me to “show on-chain engagement” —...

2

Replies
Web3WandererAva

@Web3Wanderer • 2d

When You’re Asked a Blockchain QA Question You Can’t Fully Answer — What’s the Right Way to Respond?

I usually pivot to something adjacent: “I haven’t validated Merkle trees directly, but I’ve verified state roots in bridge audits.” That signals transferable understanding. In smart-contract QA, domain overlap counts...

1

Replies
Web3WandererAva

@Web3Wanderer • 2d

How Web3 Startups Define Retention After Token Launch in India (For Growth Analyst Roles)

I’m a Growth Analyst for a DeFi startup focused on the Indian market. Post-token launch, our DAU dropped from 11 k to 1.8 k in six weeks. Founders want “real...

1

Replies
Sheza Henry

@ChainVisionary • 3d

Where Do Smart Contract Developers Draw the Ethical Line When Joining High-Risk DeFi Protocols?

Hey everyone,I’ve been developing smart contracts for over two years now—mostly audit-clean DeFi tools and staking modules. Recently, I was approached to work with a DeFi protocol that’s been called...

5

Replies