Joined December 2025
- Tweets 62
- Following 42
- Followers 21
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10 Photos and videos
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Apr 4
Built my first real Web3 project 👇
A multi-chain crypto wallet (ETH, SOL, BTC)
🔹Mnemonic-based wallet (BIP-39/44)
🔹Live balances send transactions
🔹UTXO handling for Bitcoin
🔹Custom UI
Still early in Web3, but this helped a lot.
#web3‌‌ #blockchain #cryptowallet
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May 7
Today I learned how DeFi replaces banks with smart contracts.
Unlike TradFi, DeFi is permissionless, transparent, and runs on deterministic code instead of centralized institutions. Also learned about “Money Legos” — how protocols can stack together to create complex systems.
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May 5
Today I learned about smart wallets & EIP-7702.
Normal wallets = user control but not programmable
Smart wallets = programmable but extra setup
EIP-7702 bridges this by letting your wallet act like a smart wallet temporarily.
#Web3 #Ethereum #SmartWallets #EIP7702 #Blockchain
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May 2
Today I learned about the “oracle problem” in blockchain.
Blockchains can’t access real-world data on their own… that’s where oracles come in.
But centralized oracles = single point of failure
Solution? Decentralized Oracle Networks (DONs) like Chainlink đź”—
#Blockchain #Web3
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Apr 29
Deployed my first token on testnet today using OpenZeppelin to write the crypto currency contract.
What’s the FIRST thing you’d test on a fresh contract?
#Web3 #Solidity #Ethereum #OpenZeppelin #BuildInPublic #Testnet #Blockchain
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Apr 25
Building from scratch hits different. 🔥
Today I coded my own ERC-20 crypto without OpenZeppelin.
Mind blown by the approve() trap: blocking 0 allowances traps users, no way to revoke DEX access.
What's the toughest Solidity concept you've faced?
#Web3 #Blockchain #Crypto
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Apr 24
Most people think blockchain = crypto đź’°
But it’s actually a masterclass in distributed systems
How do you prevent double spending…
WITHOUT a central authority?
How do light clients verify transactions…
WITHOUT downloading the full chain?
Quick breakdown 👇
#Web3 #Blockchain
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Apr 24
If you’re a backend engineer, this shift will change how you think about systems forever.
What surprised you most about blockchain architecture? đź‘€
#Web3 #Blockchain #BackendEngineering #DistributedSystems #Solidity #CryptoDev
medium.com/@ashishasmit0303/…
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Apr 20
Most people use tokens on Ethereum but don’t realize this
Early on, every token had different rules
Apps had to write custom code for each one
That doesn’t scale
ERC20 fixed it with one shared standard
Simple idea, massive impact
#Ethereum #Web3 #LearnInPublic #Blockchain
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Apr 20
ERC20 basically makes every token follow the same rules
It lets apps use your tokens without owning them
Also where things can go wrong if permissions are careless
Do you think DeFi would exist like this without ERC20
#Crypto #DeFiDiscussion
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Apr 18
What if voting systems were tamper-proof, transparent and fully on-chain?
Just built my first Voting DApp in Solidity.
From registering voters to preventing double voting and declaring a winner, all handled by a smart contract.
#Solidity #Web3 #BuildInPublic #Dapp #Voting
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Apr 16
Testing smart contracts completely changed my perspective today.
The biggest takeaway is that testing is not about making the contract work.
It is about trying your hardest to break it.
What was your biggest lightbulb moment with security?
#web3 #solidity #buildinpublic
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Apr 16
Spent the day in Hardhat testing smart contracts
Learned 'describe', 'it', 'expect' and wrote tests to break my code
wrong payments
out of stock
edge cases
Here is a look at the actual output.
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Apr 14
I wrote a smart contract… and today I actually deployed it locally.
That moment when code turns into something real >>> 👇
Started with Solidity basics
Improved it using modifiers & inheritance
Deployed using Hardhat Ignition ⚒️
#web3 #solidity #buildinpublic #hardhat
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Apr 14
Code snippet from the deployment module 👇
Using Hardhat Ignition to deploy set initial price.
Still figuring things out, but getting there.
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Apr 12
You mistype one word in your 12-word seed phrase… wallet says “Invalid” instantly.
But it works 100% offline.
So who’s checking?
It’s a tiny checksum hidden inside the phrase.
Now I’m wondering:
is such a small checksum really enough to catch errors?
#web3 #blockchain #crypto
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Apr 12
128-bit entropy → words
last bits = checksum
wallet recomputes & verifies
That’s why 1 wrong word fails.
Wrote a deeper breakdown here:
medium.com/@ashishasmit0303/…
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Apr 11
Built an upgraded Soda Machine smart contract in Solidity today.
Applied:
🔹 mappings & struct for user state management
🔹 visibility keywords (public, external)
🔹 interacting with other contracts via interface
🔹 inheritance for pricing logic
#Solidity #Web3 #BlockchainDev
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Apr 10
Built a SodaMachine smart contract in Solidity today as a basic LLD exercise.
Applied:
🔹 modifier for access control
🔹 require for validations
🔹 payable for ETH transactions
🔹 Contract balance & withdrawal logic
🔹 State management
#Solidity #Web3 #BlockchainDev
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Apr 10
Your Public Key and your Public Address are NOT the same thing.
In fact, exposing your actual Public Key could make your wallet vulnerable to future Quantum Computer attacks. This is exactly why you should NEVER reuse a crypto address. 👇
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Apr 10
Want to know the math behind this? I wrote a detailed blog explaining the quantum threat, how HD wallets protect us, and why Bitcoin's legacy addresses are built like a fortress.
Protect your bags and read the mechanics here:
medium.com/@ashishasmit0303/…
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