This week, we have:

• Web3 Summit in Berlin!

• An episode of DevNTell Builders about AI-enabled gaming.

• An episode of DevNTell about blockchain interoperability.

• A DeFi hackathon.

Unplug from the hype machines and hack in true cypherpunk spirit at Web3 Summit, 16-18 July at Berlin’s Funkhaus, where there are zero sponsors, zero logos, and zero tribalism. 

Expect paradigm-shifting keynotes from Gavin Wood and cryptography pioneer Prof. Ari Juels alongside cutting-edge research tracks, hands-on workshops, 24/7 hackspace, and unconference nodes where you can connect with like-minded builders. 

Claim a limited free student/OSS contributor pass with DDVIP, or slice any ticket in half with DD50 for Developer DAO members. Less trust. More truth. 

Get more details about the summit and apply here. 

This edition of the newsletter is proudly sponsored by Web3 Foundation.

​In this special builder series edition of DevNTell, ​viewers will see Ryan and Eric demonstrate how ChainCraft enables anyone to create games through AI chat, convert them into blockchain assets, and compete with other players for cryptocurrency.

Register here for notifications when the Builder Series episode with ChainCraft starts.

​​This week's episode of DevNTell is about Supercharging Blockchain Interoperability with Reactive Network. Rong Kai, CEO of Reactive Network, will join us. Reactive Network is an EVM-compatible execution layer that allows developers to create dApps using reactive contracts.

Viewers of this DevNTell will see Rong give a deep dive into how Reactive Network is redefining Web3 automation, including an exploration of event-driven smart contracts, secure AI integration, and the future of decentralized infrastructure.

Register here to get notifications when the episode starts.

Arbitrum is a technology suite designed to scale Ethereum. You can use Arbitrum chains to do everything you do on Ethereum — use Web3 apps, deploy smart contracts, DeFi, and more, with the kicker being that your transactions will be cheaper and faster. Why would you want to settle for any less with over 3.8 million ETH saved, 1.69 million active wallets, and over 1.7 billion total transactions?

Get started today by exploring Arbitrum’s comprehensive docs and tutorials to help you get started with launching your next DApp today!

From July 25 to August 6, 1inch invites developers worldwide to compete for $525,000 in bounties by enhancing interoperability in Web3. Build the next DeFi unicorn, based on innovative solutions that connect networks, bring operations onchain, and offer a new level of user experience.

Sign up on the Unite DeFi website if interested.

Last week, we had two episodes of DevNTell. The first was an episode featuring the legendary Patrick Collins, and the second was a special builder series edition, which included Adam Stallard and Paslar, founders of Updraft.

The legendary Patrick Collin, Co-Founder of Cyfrin, talked about how to secure the blockchain and its users through Institutional-level smart contract audits, tools, and education.

Recap the episode on Spotify and mint the episode on Pods. 

The episode with Updraft was about coordinating Ideas into Reality with Updraft. Updraft is a decentralized coordination platform where ideas come first, and everything else follows.

Viewers of this DevNTell listened to Adam and Paslar as they showed us how Updraft works and how you can use it to fund your Idea, without a business model, investors, or time-consuming grant applications.

Recap the episode on Spotify and mint it on Pods.

Disclaimer: Please do your due diligence about a role posted here.

• @megabyte0x is actively searching for a new role in crypto.  He was the co-founder of @0rbitco (acquired), worked with @0xaarc, @biconomy @hyperlaneindia and @thegraphindia, and more as a freelancer. Won multiple hacks: megabyte0x.xyz/builds. 

• @crlfq on the D_D Discord is looking for a Degen DeFi Developer. Send a message on X if interested. 

• D_D member @hyperalchemy is searching for interesting projects to collaborate with. Project manager with over 15 years of experience and technical background. DMs are open.

• Pear Protocol is scaling and hiring for the post of a Senior Backend Engineer. See the application details on this

This proposal is requesting:

• 9,000 USDC for the July-Sept Quarter to renew the Coordination/Marketing Role that Billyjitsu and marketing, led by Narbs, are currently managing.

• 40,000 USDC, over time, for the investments team. This will be used to earn yield over time while analyzing risk factors for the DAO. 

The full $40,000 will not be taken all at once, but will be strategically pulled when opportunities arise that meet certain risk criteria. The goal for the stables is to achieve at least an 8% return on assets used, which would equate to a $3,200 return over 365 days. All funds would be returned. The request for a large amount is now primarily for access when opportunities arise, and having to make multiple proposals can result in lost opportunities.

Read the full proposal and make your contributions.

🚀 Founders: Scale Your Web3 or AI Product Faster.

D_D Ventures partners with bold builders, reshaping the future of decentralized tech and AI. We help early-stage teams like yours:

• Build smarter with Web3 and AI infrastructure expertise.

• Grow globally with proven strategies to amplify your reach.

👉 Got vision? Let’s talk.

Contact us today to elevate your product to category leadership.

The development of the first DAO’s hybrid cloud for blockchains and DApp solutions is underway.

Join the waitlist here.

The D_D Academy is a sub-section of Developer DAO tasked with creating educational content for public goods. Are you interested in contributing educational content or development work to the Academy and being rewarded?

Join the Academy sync and find out how you can contribute. Reach out to @piablo.eth to learn how you can contribute as the Academy syncs are back and better. 

Delegate your ARIO tokens to our Arweave gateway, as we will share 10% of the rewards with you.

You can delegate your ARIO tokens here.

If you don’t have ARIO tokens yet, visit the ar.io website to learn how to obtain them.

• Check out Bonadocs, a complete toolkit for onchain application development and collaboration.

• Introducing KDBX: Rust-like KeePass (KDBX 4) file format for TypeScript by @hazae41.

• Builder's story, first edition, by BlockchainHQ, featuring the web3 journey of Patrick Collins, posted by D_D member Mahima Thacker.

GMX V1 Exploit on Arbitrum: Root Cause and Next Steps

On July 9, an attacker exploited a vulnerability in GMX V1’s OrderBook contract, bypassing re-entrancy safeguards to manipulate Bitcoin’s average short price. The attacker called increasePosition directly in the Vault contract, which should only be accessible via PositionRouterManager. The attacker used a flash loan to purchase GLP at $1.45, artificially inflate its value to $27 through falsified short losses, and redeem it for a $40M profit.

GMX swiftly paused Avalanche trading to prevent copycat attacks, contacted exchanges and stablecoin issuers (Circle/Tether) to freeze funds, and confirmed GMX V2 is unaffected due to improved contract architecture.

Vitalik Buterin’s EIP-7983: Ethereum Gas Cap Proposal Explained

Vitalik Buterin’s EIP-7983 aims to harden Ethereum against DoS attacks by capping individual transaction gas usage at 16.77 million (2²⁴): preventing any single tx from monopolizing a block. 

This enforces predictable execution, reduces network stress, and aligns with zero-knowledge virtual machines (zkEVMs) critical for scaling. The limit intentionally balances compatibility: high enough for complex DeFi operations (most current txs fall below it), yet low enough to eliminate transaction-level attack vectors.

GMX Exploiter Return $40M Days After Hack, Token Zooms Higher

The attacker behind GMX's $40M V1 exploit has fully returned the stolen funds after accepting the project's $5M "white-hat" bounty offer. The repayment began with $10.5M in FRAX sent to GMX's deployer wallet, followed by $37.5M in mixed assets (including 9K ETH) to a security multisig. GMX had paused V1 operations on Arbitrum/Avalanche and pledged no legal action if funds were returned within 48 hours, a condition the hacker met.

This week, we have:

• Web3 Summit in Berlin!

• An episode of DevNTell Builders about AI-enabled gaming.

• An episode of DevNTell about blockchain interoperability.

• A DeFi hackathon.

Unplug from the hype machines and hack in true cypherpunk spirit at Web3 Summit, 16-18 July at Berlin’s Funkhaus, where there are zero sponsors, zero logos, and zero tribalism. 

Expect paradigm-shifting keynotes from Gavin Wood and cryptography pioneer Prof. Ari Juels alongside cutting-edge research tracks, hands-on workshops, 24/7 hackspace, and unconference nodes where you can connect with like-minded builders. 

Claim a limited free student/OSS contributor pass with DDVIP, or slice any ticket in half with DD50 for Developer DAO members. Less trust. More truth. 

Get more details about the summit and apply here. 

This edition of the newsletter is proudly sponsored by Web3 Foundation.

​In this special builder series edition of DevNTell, ​viewers will see Ryan and Eric demonstrate how ChainCraft enables anyone to create games through AI chat, convert them into blockchain assets, and compete with other players for cryptocurrency.

Register here for notifications when the Builder Series episode with ChainCraft starts.

​​This week's episode of DevNTell is about Supercharging Blockchain Interoperability with Reactive Network. Rong Kai, CEO of Reactive Network, will join us. Reactive Network is an EVM-compatible execution layer that allows developers to create dApps using reactive contracts.

Viewers of this DevNTell will see Rong give a deep dive into how Reactive Network is redefining Web3 automation, including an exploration of event-driven smart contracts, secure AI integration, and the future of decentralized infrastructure.

Register here to get notifications when the episode starts.

Arbitrum is a technology suite designed to scale Ethereum. You can use Arbitrum chains to do everything you do on Ethereum — use Web3 apps, deploy smart contracts, DeFi, and more, with the kicker being that your transactions will be cheaper and faster. Why would you want to settle for any less with over 3.8 million ETH saved, 1.69 million active wallets, and over 1.7 billion total transactions?

Get started today by exploring Arbitrum’s comprehensive docs and tutorials to help you get started with launching your next DApp today!

From July 25 to August 6, 1inch invites developers worldwide to compete for $525,000 in bounties by enhancing interoperability in Web3. Build the next DeFi unicorn, based on innovative solutions that connect networks, bring operations onchain, and offer a new level of user experience.

Sign up on the Unite DeFi website if interested.

Last week, we had two episodes of DevNTell. The first was an episode featuring the legendary Patrick Collins, and the second was a special builder series edition, which included Adam Stallard and Paslar, founders of Updraft.

The legendary Patrick Collin, Co-Founder of Cyfrin, talked about how to secure the blockchain and its users through Institutional-level smart contract audits, tools, and education.

Recap the episode on Spotify and mint the episode on Pods. 

The episode with Updraft was about coordinating Ideas into Reality with Updraft. Updraft is a decentralized coordination platform where ideas come first, and everything else follows.

Viewers of this DevNTell listened to Adam and Paslar as they showed us how Updraft works and how you can use it to fund your Idea, without a business model, investors, or time-consuming grant applications.

Recap the episode on Spotify and mint it on Pods.

Disclaimer: Please do your due diligence about a role posted here.

• @megabyte0x is actively searching for a new role in crypto.  He was the co-founder of @0rbitco (acquired), worked with @0xaarc, @biconomy @hyperlaneindia and @thegraphindia, and more as a freelancer. Won multiple hacks: megabyte0x.xyz/builds. 

• @crlfq on the D_D Discord is looking for a Degen DeFi Developer. Send a message on X if interested. 

• D_D member @hyperalchemy is searching for interesting projects to collaborate with. Project manager with over 15 years of experience and technical background. DMs are open.

• Pear Protocol is scaling and hiring for the post of a Senior Backend Engineer. See the application details on this

This proposal is requesting:

• 9,000 USDC for the July-Sept Quarter to renew the Coordination/Marketing Role that Billyjitsu and marketing, led by Narbs, are currently managing.

• 40,000 USDC, over time, for the investments team. This will be used to earn yield over time while analyzing risk factors for the DAO. 

The full $40,000 will not be taken all at once, but will be strategically pulled when opportunities arise that meet certain risk criteria. The goal for the stables is to achieve at least an 8% return on assets used, which would equate to a $3,200 return over 365 days. All funds would be returned. The request for a large amount is now primarily for access when opportunities arise, and having to make multiple proposals can result in lost opportunities.

Read the full proposal and make your contributions.

🚀 Founders: Scale Your Web3 or AI Product Faster.

D_D Ventures partners with bold builders, reshaping the future of decentralized tech and AI. We help early-stage teams like yours:

• Build smarter with Web3 and AI infrastructure expertise.

• Grow globally with proven strategies to amplify your reach.

👉 Got vision? Let’s talk.

Contact us today to elevate your product to category leadership.

The development of the first DAO’s hybrid cloud for blockchains and DApp solutions is underway.

Join the waitlist here.

The D_D Academy is a sub-section of Developer DAO tasked with creating educational content for public goods. Are you interested in contributing educational content or development work to the Academy and being rewarded?

Join the Academy sync and find out how you can contribute. Reach out to @piablo.eth to learn how you can contribute as the Academy syncs are back and better. 

Delegate your ARIO tokens to our Arweave gateway, as we will share 10% of the rewards with you.

You can delegate your ARIO tokens here.

If you don’t have ARIO tokens yet, visit the ar.io website to learn how to obtain them.

• Check out Bonadocs, a complete toolkit for onchain application development and collaboration.

• Introducing KDBX: Rust-like KeePass (KDBX 4) file format for TypeScript by @hazae41.

• Builder's story, first edition, by BlockchainHQ, featuring the web3 journey of Patrick Collins, posted by D_D member Mahima Thacker.

GMX V1 Exploit on Arbitrum: Root Cause and Next Steps

On July 9, an attacker exploited a vulnerability in GMX V1’s OrderBook contract, bypassing re-entrancy safeguards to manipulate Bitcoin’s average short price. The attacker called increasePosition directly in the Vault contract, which should only be accessible via PositionRouterManager. The attacker used a flash loan to purchase GLP at $1.45, artificially inflate its value to $27 through falsified short losses, and redeem it for a $40M profit.

GMX swiftly paused Avalanche trading to prevent copycat attacks, contacted exchanges and stablecoin issuers (Circle/Tether) to freeze funds, and confirmed GMX V2 is unaffected due to improved contract architecture.

Vitalik Buterin’s EIP-7983: Ethereum Gas Cap Proposal Explained

Vitalik Buterin’s EIP-7983 aims to harden Ethereum against DoS attacks by capping individual transaction gas usage at 16.77 million (2²⁴): preventing any single tx from monopolizing a block. 

This enforces predictable execution, reduces network stress, and aligns with zero-knowledge virtual machines (zkEVMs) critical for scaling. The limit intentionally balances compatibility: high enough for complex DeFi operations (most current txs fall below it), yet low enough to eliminate transaction-level attack vectors.

GMX Exploiter Return $40M Days After Hack, Token Zooms Higher

The attacker behind GMX's $40M V1 exploit has fully returned the stolen funds after accepting the project's $5M "white-hat" bounty offer. The repayment began with $10.5M in FRAX sent to GMX's deployer wallet, followed by $37.5M in mixed assets (including 9K ETH) to a security multisig. GMX had paused V1 operations on Arbitrum/Avalanche and pledged no legal action if funds were returned within 48 hours, a condition the hacker met.