This digital collectible serves as evidence of your participation in Hadrien Croubois's OpenZeppelin Contracts 5.0 session at EthCC[6] held in July 2023. Follow us on Twitter @OpenZeppelin | @Amxx

Gnosis Card is the world’s first self-custodied Visa debit card directly connected to an on-chain wallet, instead of a traditional bank account, built on the Gnosis Pay Decentralized Payment Network (DPN). Thank you for joining and supporting our community by owning the limited edition POAP!

Thank you for stopping by The Graph booth during the sixth-ever EthCC! Visit thegraph.com to learn what's next for the indexing and query layer of web3.

Thank you for visiting the POAP booth at EthCC [6]! We hope you had a great experience, grabbed a bunch of stickers, and interacted with the new POAP Collections! The POAP team.

The Solidity Summit is a collaborative event focusing on the future of Solidity. Solidity Summit 2022 is part of Devconnect Amsterdam and is a one-day forum for the Solidity ecosystem. It is for all people involved and interested in the Solidity language and the tooling around it. 🗓️ Wed, April 20 2022 📍 Tolhuistuin, Amsterdam

MathBlocks is a non-profit NFT house and DAO whose mission is to support STEM education. It helps math artists to launch collections, give them the spotlight and provide them with a community. The Whitelist Test is a chance to get whitelisted for Prime NFTs (governance tokens for MathBlocks DAO) and participate in DAO governance. The test has 5 questions that require elementary math and geometry knowledge, 1 bonus question from classical mechanics, 1 leet bonus question that requires dynamic programming and 1 bonus question where contestants can make up math memes.

TIMEPieces Town Hall - October 14