Curta
@curta_ctf
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A programming competition platform on EVM and community of protocol & security experts. https://t.co/qIczdhNLOt
Waterfall
Joined December 2022
We are excited to announce @curta_ctf's Hacker in Residence program, where select Curta members will receive 0.5 ETH a month for their involvement in the ETH ecosystem. -- details in thread below --
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Introducing Curta, a CTF protocol where writing and solving EVM puzzles can enable cash prizes or securing a place on the leaderboard.
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We are excited to announce that Curta is LIVE!. Players can now create and solve EVM puzzles to earn rewards. Head to to capture a Flag.
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Introducing Curta Golf — a King of the Hill gas optimization competition ⛳. Submit an optimization to rank on the leaderboard. More details below:.
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Introducing EVM Day by @curta_ctf, @chainlight_io, and @gasliteGG. A day-long event of CTF puzzles, gas optimization challenges, and fun on the EVM. 📍 Denver .📅 Feb 29 . RSVP below 👇
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We're thrilled to announce the first Curta Cup, a hybrid CTF competition on November 18. The CTF will be open to all, but apply here if you plan to attend in person in Istanbul: . 📌
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A group of friends from the Curta community got together Friday night and proudly placed in the top 10 for the @paradigm_ctf. Congrats to the Curta team and GGWP to everyone else. 🎉🎉🎉
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If you've ever solved a Curta puzzle, you can now skip the waitlist and sign up for @farcaster_xyz
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Curta Cup has now concluded. 🏆. Congratulations to @hackthedefi ( @tonyke_bot ) for winning the overall Curta Cup leaderboard and taking home $1000 USDC from @ChainLight_io!. 🧵 (1/7)
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Puzzle 17 🧩. Coming Friday, Sept. 8. By @_hrkrshnn, the co-founder of @SpearbitDAO, previously worked on solc (@solidity_lang).
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Over the past year, Curta has grown in popularity as a platform for showing off onchain CTF skills. 2 CTFs by @ChainLight_io will go live on Curta on Feb 29. Top performer wins a physical Curta CTF trophy. Turn on notifications for when the competition goes live. 🔔
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Puzzle 9 ⛳️. This Thursday at 11AM ET. By @vex_0x, smart contract dev @OPLabsPBC & contributor to the @huff_language compiler
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Write-ups, now LIVE 📝. Browse through puzzle write-ups natively on Curta. Example: If you want to publish a write-up for a puzzle on please DM us.
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Friday, March 22. Curta CTF Puzzle by @0xOwenThurm, founder & lead auditor at @GuardianAudits . on @base 🔵
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We're thrilled to announce our first Hacker in Residence, @0xcacti!. 0xcacti has built projects like open-source MEV bots and on-chain Tic-tac-toe, with goals of contributing to Foundry and Reth.
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FIRSTBLOOD!. 🏆 @sina_eth_ (13:43:24). Congrats to Sina for being the first solver to Puzzle 13 by @exp_table. Phase 1 begins now.
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We are excited to announce @0xKaden as our second ever Hacker in Residence! . Kaden will receive 0.5 ETH every month for continuing to make open-source contributions to the Ethereum ecosystem.
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We are so back. New CTF Puzzle going live next week. DM us if you want to be an author this year or tag someone you want to see write a puzzle below.
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Firstblood! 🩸. Congrats to @orenyomtov for being the first to solve Usurper's Throne.
Got FIRSTBLOOD on @ChainLight_io's challenge in Curta Cup.It's also the first @curta_ctf challenge ever deployed to @BuildOnBase
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🩸First blood!. Congrats to @cairoeth for being first to solve puzzle RollApp Sequencer with a solve time of 02:57:49.
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Puzzle Fraud by @ChainLight_io has officially concluded with 18 solvers with an average of 11.5 hours per solve!. Here are the top 3:. 🥇 @lj1nu (00:23:22).🥈 @hibillh (00:51:24).🥉 @pranav__garg_ (00:54:58). Congrats to everyone else who was able to make the leaderboard! 🎉🎉🎉
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We're giving away $15k in prizes to attendees of EVM Day!. Overview on distribution 🧵👇
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Curta Cup is LIVE! 🏆. You can now solve the first few puzzles on @ChainLight_io, @osec_io, @zellic_io
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Puzzle 9 by @vex_0x has officially ended. Only 17 ctfers were able to solve this puzzle!. 🥇@chainlight_io .🥈@lj1nu .🥉@plotchy . Congrats to everyone who was able to solve the puzzle 🎉🎉🎉
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Huge shout out to @farcaster_xyz for being the first sponsor for EVM Day. Farcaster is always at the forefront of crypto social experimentation. We're huge fans of Frames!
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Puzzle 16 ⛳️. Coming next Tuesday, August 22nd. By @devtooligan, Security Engineer 🧐 at @trailofbits and Chief Pharmacist 💊 at @huff_language.
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Curta's first CTF puzzle by @fiveoutofnine has been deployed! . Solve at to receive an invite to our exclusive party this Friday
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Puzzle 14 ⛳️ . Coming next Friday, July 21st. By @jtriley_eth, smart contract engineer and @huff_language enjoyer
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We are back! It's been a minute. Introducing Puzzle 13 ⛳️. Friday July 7th. By @exp_table, WhiteNoise operative and huff-rs contributor
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Puzzle 15 ⛳️. Coming next Friday, August 4th. By @zachobront, security researcher and bug huntoor
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Puzzle 18 🧩. This Friday, Sept. 22nd, at Noon ET. By @eth_call, EVM enthusiast and counter mechanisms researcher
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Puzzle 6 has concluded. Only 18 ctfers were able to solve @wei3erHase’s puzzle!. Congrats to @chainlight_io, @sampriti0, @0x796, sanban.eth, @lj1nu, @MasterPatate, @ngndev, minimooger.eth, 0x4790c16, and p0pular.eth for making top 10 🎉🎉🎉
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First Blood! . Congrats 🎉🎉🎉 0x4a69B81A2cBEb3581C61d5087484fBda2Ed39605
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Factorial was released on Feb 29 at our event EVM Day by @PopPunkOnChain from Gaslite. The most influential optimizoors for this challenge are @real_philogy, @divergencearran, and @shunduquar. Read more to see the progression.
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Curta is pioneering a new whitelist minting mechanism:. It requires participants to use their creativity and critical-thinking to solve puzzles and earn the right to mint NFTs.
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We are excited to announce the distribution of the $15K prize pool for EVM Day. Winners in the thread 👇
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🏁 FIRSTBLOOD 🏁. Congrats @PogoB (minimooger.eth) for finding the first solution to Puzzle 12!
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Curta Teams is now LIVE 🫂. Solve puzzles and get ranked. Together. ◆ Create/manage teams.◆ Invite people to your team.◆ Ranked by the best solve in each team
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Puzzle 7 is now LIVE!. This puzzle is written by @brockjelmore, chief architect at @nascentxyz . Play at to capture a Flag Token ⛳️
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Puzzle 11 ⛳️. This Wednesday, May 24th at 10AM ET . By @leonardoalt, formal verification lead @ethereum and @solidity_lang contributor
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🏆 First Blood by @lj1nu on @_hrkrshnn's Puzzle 17!. 48 hours left in Phase 1 and 72 in Phase 2. The on-chain aspect may be helpful for this puzzle:.
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Puzzle 8 is now LIVE!. This puzzle is written by @gf_256, cofounder at @zellic_io and Perfect Blue. Play at to capture a Flag Token ⛳️
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We are excited to announce our partnership with @MatchBox_DAO. Together with MatchBox, we will be retroactively rewarding top players with USDC on the Curta leaderboard. 🏆. MatchBox runs the 0xTitans CTFs, info is later in the thread. 🧵👇 (1/8)
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All Curta Cup puzzles have now entered Phase 2: solutions can now be revealed. You have 2 days to solve these puzzles (to claim your Flag NFT) and post your solution writeups. @osec_io will reward the best writeup with $500. 💰. We're reposting the best writeups. Tag us. 🫡
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Golf is the newest game mode on Curta. Made for gas optimization enthusiasts. On February 29, a Golf challenge by @gasliteGG will go live on Curta. The top optimizer will win the Golf trophy. Turn on notifications for a reminder when the competition goes live. 🔔
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We just shipped out a Curta Cup T-shirt to everyone who qualifies for one. Check your emails.
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Puzzle 9 is now LIVE!. This puzzle is written by @vex_0x from Optimism. Vex is a contributor to the @huff_language compiler. Play at to capture a Flag Token ⛳️
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🆕 Curta docs overhaul. ◆ Rewritten for flow, clarity, and organization.◆ More functional components.◆ Cleaner, more intuitive UI.
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For Curta Cup on Nov 18, some of the puzzles will be written by @ChainLight_io, the current #1 player on Curta’s all-time leaderboard. Here’s an overview of this award-winning smart contract auditing firm 👇
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Congratulations to the rest of our winners in the CTF segment!. 🥈 2nd place: @cairoeth ($2k).🥉 3rd place: @windowhan ($1k).🏅 4th place: @hibillh ($1k).🏅 5th place: @push0ebp ($1k)
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Curta Cup begins tomorrow at 11:00 AM in Istanbul (3:00 AM EST). Good luck to everyone!
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Two awards up for grabs on EVM Day:. The Golf Trophy and the CTF Trophy. RSVP below 👇
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Challenge 1 Log by @sabnock66 from @waterfall_mkt / @curta_ctf is NOW LIVE!. Instruction: implement a gas-optimized version of the log function. See restraints and submit optimization here:.
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Congrats to @shunduquar, the winner of Wassie 9172 courtesy of @bywassies!. Shung has been an active member of the Curta community since its early days almost a year ago. He is currently ranked #16 on the Puzzles leaderboard and has claimed King status 7 times in Golf.
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Curta puzzle by @ret2jazzy is now LIVE!. Firstblood receives an Authorship Token. Solve here:
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FIRSTBLOOD! 🏆. @lj1nu (01:52:00). Congrats to Jinu for being the first solver to Puzzle 13 by @zachobront. Phase 1 begins now.
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EVM Day Puzzles and challenges are live on Curta!. Good luck everyone 🫡.📌 📌 📌
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Puzzle 18 ♄ 🝡🝟 ☉ by @eth_call has officially concluded. Here are its top three solvers:. 🥇 @lj1nu (03hr 29min 00sec).🥈 @chainlight_io (04hr 36min 36sec).🥉 @plotchy (04hr 152min 24 sec). Congrats to everyone else who was able to make the leaderboard! 🎉🎉.
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This SUNDAY at 12PM ET, Puzzle #4 will be announced by @walden_yan, a 2020 IOI gold medalist.
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Travel back in time to solve the TinySig puzzle. 🕰️. Check out @rileyholterhus's write-up now on Curta. 📌
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Puzzle 4 by @walden_yan has officially ended. Congrats to @sampriti0, @0xkarmacoma, @RaphDeknop, @eth_call, @lj1nu, @MasterPatate, @Mauricio_0218, @0x796, and @ngndev for making top 10 🎉🎉🎉
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🩸Firstblood!. Congrats to @hibillh for being first to solve puzzle NumberHeist with a solve time of 03:09:16.
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NumberHeist by @0xOwenThurm has officially concluded with 11 solvers and an average of 19 hours per solve!. Here are the top 3:. 🥇 @hibillh (03:09:16).🥈 @push0ebp (07:12:18).🥉 0x9695b15 (07:12:48). Congrats to everyone else on the leaderboard! 🎉🎉🎉
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Puzzle #1 has concluded with 72 total solvers!. Puzzle #2 by @fiveoutofnine will be released tomorrow (March 8) at 11AM ET on
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RollApp Sequencer Challenge by @ChainLight_io has officially concluded with 9 solvers with an average of 29 hours per solve!. Here are the top 3:. 🥇 @cairoeth (02:01:06).🥈 @lj1nu (03:22:00).🥉 @hibillh (06:13:36). Congrats to everyone else on the leaderboard! 🎉🎉🎉
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Puzzle 2 has now officially ended. Congratulations to everyone that was able to capture a Flag!. Also congrats to @chainlight_io, @0xkarmacoma, @eth_call, @frankresearcher, @ngndev, @SilasYayoi, and more for making top 10 ⛳️
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About the author @ret2jazzy:. • Cofounder of @zellic_io, a leading web3 security firm. • Cofounder of @pb_ctf, the #1 CTF team in the world for 2023, 2021, and 2020.
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FIRSTBLOOD! 🩸. Congrats to y4nhu1.eth for being the first to solve The Fundamental.
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Curta’s protocol mechanism serves as a CAPTCHA for NFTs, preventing bot attacks. To mint an NFT, you have to solve a CTF puzzle:
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🏆 Seasons: a way to highlight both new and old competitors. Each Season spans 5 Puzzles, and the all-time leaderboard is still accessible via "All Seasons"
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