🐸Smart🐸Contract🐸Programmer🐸@ProgrammerSmart

smartcontract.engineer solidity-by-example.org vyper-by-example.org piped.video/@smartcontractpr…

smartcontract.engineer
Joined April 2019
Uniswap V3 - How to derive the curve of real reserves
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Why is spot price = Y / X in Uniswap?
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Notes on Merkle tree algorithms More notes github.com/t4sk/notes/blob/m… Code in Rust🦀 github.com/t4sk/hello-rust/b…
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How to calculate impermanent loss on Uniswap V2 Reference medium.com/auditless/how-to-… More github.com/t4sk/notes/tree/m…
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Math for vault. How much shares to mint? How much amount to withdraw?
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Uniswap V3 liquidity delta Drawn with excalidraw.com/ More DeFi notes github.com/t4sk/notes
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Gas comparisons of ++ before, after and += 1 Solidity 0.8.10
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Synthetix Staking Rewards contract math and algorithm
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APR and APY
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GM Some math about Uniswap V3 TWAP and geometric mean
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Constant product AMM math XY = K
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CSAMM - Constant sum automated market maker More notes github.com/t4sk/notes/tree/m…
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I’m excited to join the @cyfrin family to create educational content for Cyfrin Updraft. Our vision of a secure, on-chain world begins with great developer education. I look forward to supporting more developers to learn, grow, and thrive in smart contract development.
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Uniswap V3 - How to calculate liquidity of a single position Draw with excalidraw.com/
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Added more math explanations to staking rewards
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Took me several months to understand Uniswap V3 fee algorithm. Here we go😃 Part 1 - How to calculate fee? More notes github.com/t4sk/clamm/tree/m… Drawn with excalidraw.com/
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Uniswap V3 TWAP math
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Vyper by example vyper-by-example.org/
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Options payoff Call payoff piped.video/watch?v=MZQxeQYQ… Call writer payoff piped.video/watch?v=TdW3LdN5… Put payoff piped.video/watch?v=VST_U297… Put writer payoff piped.video/watch?v=WFuLVSz6…
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Uniswap V3 algorithm to get next tick More diagrams github.com/t4sk/clamm/tree/m… Drawn with excalidraw.com/
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Fast Fourier Transform explained Used in ZKSTARK Notes and Python code🐍 github.com/t4sk/notes?tab=re… 1. Intro 2. Definitions 3. Algorithm 4. Tree example 5. Butterfly example 1 6. Butterfly example 2 7. Bit reversal - optimization
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Adding liquidity to Uniswap V2, what is the change in liquidity?👇 Liquidity delta for Uniswap V3 will be explained in the future. Drawn with excalidraw.com/ More notes github.com/t4sk/notes/tree/m…
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Uniswap V3 - Price change from a swap Notes github.com/stakewithus/notes Drawn with excalidraw.com/
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Uniswap V3 - How to calculate ETH price from sqrtPriceX96 Reference uniswapv3book.com/docs/miles… Drawn with excalidraw.com/ More notes github.com/stakewithus/notes
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How to calculate amount of tokens to add for a Uniswap V3 position Example from here atiselsts.github.io/pdfs/uni…
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DAI Stablecoin System Contract architecture (some functions are omitted) Notes github.com/t4sk/notes Drawn with excalidraw.com/
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Gas-less token transfer diagram More notes github.com/stakewithus/notes… Drawn with excalidraw.com/
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Uniswap V2 Arbitrage Optimal Amount In piped.video/9EKksG-fF1k?si=r4rr… via @YouTube Notes github.com/t4sk/notes Drawn with excalidraw.com/
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Uniswap V3 spot price
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Time Weighted Average Price Math | DeFi piped.video/FNpkUNHHn7c via @YouTube
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Tornado Cash Hack - How to deploy different contracts at the same address Notes github.com/stakewithus/notes References nitter.app/storming0x/status/1660… nitter.app/samczsun/status/166001… ethereum.stackexchange.com/q… Drawn with excalidraw.com/
samczsun
@samczsun
20 May 2023
On 2023/05/20 at 07:25:11 UTC, Tornado Cash governance effectively ceased to exist. Through a malicious proposal, an attacker granted themselves 1,200,000 votes. As this is more than the ~700,000 legitimate votes, they now have full control. openchain.xyz/trace/ethereum…
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Flash accounting in Uni V4 makes flash loans with 0% fees possible Flash loan 100 USDC PoolManager.unlock └YourContract.unlockCallback ├PoolManager.take(USDC, 100) ├PoolManager.sync(USDC) ├USDC.transfer(PoolManager, 100) └PoolManager.settle()
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Uniswap V3 Just In Time Liquidity More notes github.com/stakewithus/notes Drawn with excalidraw.com
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Uniswap V3 fee algorithm - part 1 More notes github.com/stakewithus/notes Drawn with excalidraw.com/
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Thank you @Optimism and every voter for RetroPGF🤩 Tweet below to suggest YouTube topics I should cover or new features for solidity-by-example.org/ vyper-by-example.org/
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Uniswap V3 Flash loan example solidity-by-example.org/defi…
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Uniswap V3 liquidity price graph Notes github.com/stakewithus/notes Drawn with excalidraw.com/
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RAI - How is RAI price stabilizied? More notes github.com/stakewithus/notes Drawn with excalidraw.com
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What is and when to use geometric mean?
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How to calculate average without overflow Video piped.video/watch?v=TPAvMtgb… Notes github.com/t4sk/notes Drawn with excalidraw.com
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Constant product AMM arbitrage profit More notes github.com/stakewithus/notes Drawn with excalidraw.com
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Uniswap V3 TWAP inverse price
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How interest (stability fee) is calculated when you borrow DAI on Maker Drawn with excalidraw.com
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Hello Rust | Rust part 1 piped.video/wq56EAYZqGg?si=j3UY… via @YouTube

Hello Rust | Learn Rust part 1

Intro to programming in RustCode https://github.com/t4sk/hello-ru...

youtube.com
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Uniswap V3 fee algorithm - part 5 Fee growth above equation Video piped.video/watch?v=4XCVXFfG… Code github.com/t4sk/clamm Drawn with excalidraw.com
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Exponential moving average for irregular intervals Code github.com/stakewithus/notes… Drawn with excalidraw.com/
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Some gas saving tips solidity-by-example.org/gas-…
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I spent 10 minutes looking for Uniswap V4 ETH/USDT pool address💀 It doesn't exist. All V4 pools are in a single contract. Here is how to get pool info. 1. Get pool id (Hover next to ETH/USDT) 2. Call StateView.getSlot0 + paste pool id etherscan.io/address/0x7ffe4…
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Option payoffs Video piped.video/watch?v=kJBtMLmt… Notes github.com/t4sk/notes Drawn with excalidraw.com/
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How does EVM store negative numbers? Two's complement Notes github.com/stakewithus/notes Drawn with excalidraw.com/
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How (a&b) + (a^b)/2 calculates the average (a&b)*2 + (a^b) = a + b Hence (a&b) + (a^b)/2 = (a + b)/2 Why (a&b)*2 + (a^b) = a + b a&b = 1s both in a and b a^b = 1s exclusively in a or b (a&b)*2 1s are in both a and b so multiply by 2 code github.com/t4sk/notes/blob/m…
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Find most significant bit using binary search Code solidity-by-example.org/bitw… Drawn with excalidraw.com/
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Uniswap V3 fee algorithm - part 6 Calculate fee growth inside when both ticks were not initialized Video piped.video/watch?v=eDEKDABx… Code github.com/t4sk/clamm Drawn with excalidraw.com
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If you're having problem minting USDC on Foundry using deal. Here is the temporary fix👇 Steps to manually mint USDC 1. Get masterMinter 2. Prank masterMinter and call configureMinter 3. Call mint
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Read only reentrancy notes Notes github.com/stakewithus/notes Drawn with excalidraw.com/
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Rust example of calculating create2 address for EVM contracts Example usage of - Threads - Channels - Arc github.com/t4sk/hello-rust/t…
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😍 uniswapv3book.com/
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Arbitrage ETH on Uniswap V3 RETH/ETH pool 1. Swap ETH to rETH on Uniswap V3 2. Burn rETH on RocketPool to redeem ETH Why it works? - rETH generally increases in value over time - Increase in value of rETH is not reflected on Uniswap pool unless an arbitraguer steps in
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Uniswap V3 - Tick and sqrtPriceX96 Python code github.com/stakewithus/notes… More notes github.com/stakewithus/notes Drawn with excalidraw.com/
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Uniswap V3 fee algorithm - part 3 Fee growth inside ticks - overview More notes github.com/stakewithus/notes Drawn with excalidraw.com
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piped.video/playlist?list=PL…

Ethernaut Series (Smart Contract Hacking)

youtube.com
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Uniswap V2 and V3 spot price examples Correct from previous tweet
🐸Smart🐸Contract🐸Programmer🐸@ProgrammerSmart
23 Mar 2022
Uniswap V3 spot price
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Solidity by example side nav😃 solidity-by-example.org/
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How to calculate DAI stability fee More notes github.com/t4sk/notes Reference docs.makerdao.com/getting-st… Drawn with excalidraw.com
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Where do you declare Solidity structs? Contract, interface or separate file?
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Learn minimum assembly to write binary exponentiation in Solidity solidity-by-example.org/asse… solidity-by-example.org/asse… solidity-by-example.org/asse… solidity-by-example.org/asse… solidity-by-example.org/asse… solidity-by-example.org/app/…
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Simple estimate of minimum liquidation price for a perpetual long position (L - 1) / L * p0 >= p_liq L = leverage = 5 p0 = entry price = $3424 p_liq = liqudation pric e= 2739 actual liquidation price = 2759
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Introduction to Zero-Knowledge Proofs piped.video/_6Bm5kmov3A via @YouTube

Introduction to Zero-Knowledge Proofs

Get the free 30-day AI Mastery series 💌: https://insights.gradientl...

youtube.com
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Job posting for jr. smart contract engineer. I haven't seen this in a loooooong time cryptocurrencyjobs.co/engine…

Smart Contract Engineer at Across

Across is looking to hire a Smart Contract Engineer to join their team. This is a full-time position that is 100% remote with no geographical restrictions. Work remotely from anywhere.

cryptocurrencyjobs.co
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Why use DEX when you can swap DAI/USDC 1 to 1 with MakerDAO DssLitePSM? Currently 0% fee on swaps Contract etherscan.io/address/0xf6e72… Code example github.com/t4sk/notes/blob/m…
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Uniswap V3 fee algorithm - part 5 Fee growh initialize part 0 Some equations for fee inside Video piped.video/yfJBQA3GoBA Code github.com/t4sk/clamm Drawn with excalidraw.com
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My First Month as a Smart Contract Auditor piped.video/AtTb_BpFZkM via @YouTube
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evm.storage was nice, now it's gone evm.codes/contract is an alternative that show storage layout evm.codes/contract?address=0…
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Boring Things in DeFi that Actually Make Money | Terence An, Hyperplex |... piped.video/JyNMfwX2lL4?si=b3H8… via @YouTube

Boring Things in DeFi that Actually Make Money | Terence An, Hyperp...

Boring Things in DeFi that Actually Make Money | Terence An, Hyperp...

youtube.com
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EVM storage layout examples solidity-by-example.org/evm/… Examples - sstore - sload - slot - offset - bitmasking - storage layouts for different data types
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Why does Uniswap V3 call this variable slot0?🤔 Because it's the first state variable which is store in the 0th slot of the storage.💡 github.com/Uniswap/v3-core/b…
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Rust made me worse at JS. I keep forgetting to add "return"💀
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Blockchain Bridging | Building Cross-Chain Applications piped.video/lHyGtqWAax8?si=c0B_… via @YouTube

Blockchain Bridging | Building Cross-Chain Applications

This video is part of a section of Cyfrin Updraft all about buildin...

youtube.com
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Idea for making solidity contracts more secure. 1. Sprinkle your code with asserts 2. Stripe it away with the compiler for production build Example (not tested) Failing asserts crash the program in unit and fuzz tests. When PROD = true, compiler + optimizer removes Dev.check
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Deploy simple contract to zkSync 2.0 testnet 1. Compile contract 2. Bridge Goerli ETH to zkSync 3. Deploy contract github.com/t4sk/hello-l2/tre… Message me for Goerli Testnet ETH
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Funny scam🤣 Watch out 1. Create Github PR with scam message 2. Tag targets 3. Scam message will be emailed to targets from GitHub Be careful not to click on any link💀 @github
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"this" disables the warning "Function mutability can be restricted to pure" Confusing code😵‍💫
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Some interesting crypto jobs BGD labs - smart contract engineer cryptocurrencyjobs.co/engine… Nethermind - Security Apprenticeship cryptojobslist.com/jobs/secu… Tokemak - Senior Quantitative Developer cryptojobslist.com/jobs/seni… CoinGecko - Internship cryptojobslist.com/jobs/inte…
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Deploy Smart Contract to zkSync 2.0 | Layer 2 piped.video/8ARpZ0zL48g via @YouTube

Deploy Smart Contract to zkSync 2.0 | Layer 2

Deploy Solidity smart contract to zkSync 2.00:00 - Intro1:05 - H...

youtube.com
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Can you spot the bug? I actually made this mistake For simplicity, some code (state variables, modifiers, events, etc..) are removed
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DeFi Calculus 102: Building Derivatives | Terence An, Itos Finance | ETH... piped.video/WVa3KOT9dXA?si=8JtX… via @YouTube

DeFi Calculus 102: Building Derivatives | Terence An, Itos Finance |...

DeFi Calculus 102: Building Derivatives | Terence An, Itos Finance ...

youtube.com
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Vault inflation attack Solidity By Example solidity-by-example.org/hack… Foundry code github.com/t4sk/vault-inflat…
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Uniswap V3 fee algorithm - part 2 - Fee growth More notes github.com/stakewithus/notes Drawn with excalidraw.com
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Solidity vault contract example solidity-by-example.org/defi…
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Good resource on ZK encrypt.a41.io/
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Uniswap V3 tick bitmap
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Uniswap V3 fee algorithm - part 2 Fee growth inside Code github.com/t4sk/clamm Video piped.video/WcAYDKYUcHM Drawn with excalidraw.com/
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Algorithm to approximate decimal with binary More notes github.com/stakewithus/notes Drawn with excalidraw.com/
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Great overview of ZKSTARK Audio is not great Part 1 piped.video/watch?v=-G7Cjbs4… Part 2 piped.video/watch?v=VQFAVvcQ… Part 3 piped.video/watch?v=oktyy6B-…

Introduction to zk-STARKs (1/3)

slides: - https://asz.ink/presentations/2025-09-18-Introduction-to...

youtube.com
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Foundry examples solidity-by-example.org/?q=f…
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Bitwise operators in Solidity solidity-by-example.org/bitw…
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Fast fourier transform Notes github.com/stakewithus/notes Code github.com/stakewithus/notes… References piped.video/watch?v=h7apO7q1… piped.video/watch?v=Ty0JcR6D… vitalik.ca/general/2019/05/1…
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Exponential moving average Python code github.com/stakewithus/notes… More notes github.com/stakewithus/notes Drawn with excalidraw.com/
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Otter scan has a nice feature to view transaction trace🤩 sepolia.otterscan.io/tx/0x07…
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RAI - borrow and repay More notes github.com/stakewithus/notes Drawn with excalidraw.com
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