Joined by brilliant hackers, prestigious guests, mentors, judges and leading projects in the Polkadot community, the 2-day DoraHacks Substrate Hackathon was successfully held in Hangzhou. 70+ Hackers and more than 100+ audience participated in the event. 11 teams working on Defi, NFT, DAO, Oracle, Wallets and other topics launched their projects on Hackerlink.io/buidl, sharing the total prize pool of $15000+ sponsored by Polkadot Treasury and Huobi Polka Eco Fund. The hackathon was actually the final competition event after a series of online workshops about Substrate and Kusama&Polkadot on both technical details and how to contribute or participate in the ecosystem. 12.9 Litentry(John, core dev) : Connect Ethereum identity with offchain worker [https://www.bilibili.com/video/BV1wt4y1k7i7\](url) 12.10 Parity(Maggie Dong, Engineer): Introduction to Substrate and Polkadot [https://www.bilibili.com/video/BV1Gp4y167e4/\](url) 12.11 Parity(Maggie Dong, Engineer): Parachain and Cross-chain [https://www.bilibili.com/video/BV1CV411h7cR\](url) 12.12 OpenSquare(Yongfeng Li): How Substrate Treasury Pallet Works https://www.bilibili.com/video/BV1ia411F77r 12.12 Bifrost(Xiangcaizi): Decentralized Balancer on Bifrost [https://www.bilibili.com/video/BV1FX4y1u7oo\](url) 12.13 Web 3 Foundation(Qinwen Wang) : Governance and Grants of Web 3 Foundation [https://www.bilibili.com/video/BV1w54y1t77a\](url) 12.13 Darwinia (Denny, CTO): Introduction to Darwinia Network [https://www.bilibili.com/video/BV16a4y1H7uK\](url) 12.14 Bandot(Feng Chen): Defi 2.0 [https://www.bilibili.com/video/BV1A54y1t7MX\](url) 12.14 Patract Labs(Lipeng Yue): WASM Contract Development on Polkadot [https://www.bilibili.com/video/BV1854y147v8\](url) 12.15 Rust China Community(Bin Guo, core member): Rust Introduction [https://www.bilibili.com/video/BV1W5411H7kP/\](url) 12.16 Rust China Community(Mike Tang, Founder): Rust in Depth-Future [https://www.bilibili.com/video/BV1DK411u78J\](url) 12.16 Phala(Hang Yin): 15 minutes building a Contract on Phala [https://www.bilibili.com/video/BV1RV41187aR\](url) 12.17 Polkaworld(Xioajie Pang, Founder): The Development of Polkadot Ecosystem [https://www.bilibili.com/video/BV1Qh411Z7oH\](url) This hackathon is the 2nd hackathon in DoraHacks Global Hackathon Series--Polkadot and #Substrate Hackathon Hangzhou. This hackathon is supported by #Polkadot Treasury and @HuobiGlobal Polkadot Eco Fund with 1500 #DOT & $3000 #USDT grant pool. Joined by @OKExChain, @BIFROSTio, @ParityTech, @web3foundation, #PolkaWorld, #CandaqGroup, @AcalaNetwork, @DarwiniaNetwork, @PhalaNetwork, #Bandot, @Patractlabs, @litentry, @chainx_org, @ZenlinkPro, #OpenSquare, and @IOSGVC, @CaoArmand, @FBGCapita l& @NGC_Ventures participated as mentors, guests and judges at the hackathon. **Here's a brief list of the teams and the projects coming out of the hackathon:** **Saito Routing Proof of Concept** Open Metamask + Infura for Substrate Ecosystem. A pluggable frontend module for API integration + A backend module for routing to Substrate-aware bridging. [https://hackerlink.io/buidl/54\](url) **DNFT** Decentralized NFT Protocol on Polkadot [https://hackerlink.io/buidl/53\](url) **Little Dragon** Quadratic Governance on Element [https://hackerlink.io/buidl/52\](url) **Polus** Zero-Knowledge Proof Defi Infrastructure on Polkadot [https://hackerlink.io/buidl/51\](url) **PlanetX(Champion)** Defi Component on Polkadot [https://hackerlink.io/buidl/50\](url) **Obelisk** A new mechanism to incentivize cooperation between people and organizations [https://hackerlink.io/buidl/49\](url) **Ares Protocol** Oracle on Polkadot network [https://hackerlink.io/buidl/48\](url) **LuckDefi** Decentralized solution to lucky number [https://hackerlink.io/buidl/47\](url) **Zenlink** Cross-chain Defi Network on Polkadot [https://hackerlink.io/buidl/46\](url) **Island Wallet** Polkadot Wallet on Mobile Devices [https://hackerlink.io/buidl/45\](url) We invited our partners and did some Post-Event PR together with us and promoted to the community: *Huobi Sponsors DoraHacks’ ‘Substrate’ Hackathon with $10,000 Prize from its Polkadot Ecosystem Fund* [https://pressat.co.uk/releases/huobi-sponsors-dorahacks-substrate-hackathon-with-10000-prize-from-its-polkadot-ecosystem-fund-c246e626e086b072212fd6b99072a358/\](url) *Substrate hackathon host by @DoraHacks in Hangzhou this weekend and the Hackathon funding prize is the product of @Polkadot Treasury. * [https://twitter.com/Qinwen\_Wang/status/1340693095403278337\](url) *We are supporting the DoraHacks Substrate Hackathon to coach in Cross-Chain Identity Linking* [https://twitter.com/litentry/status/1340162664350150656\](url) **DoraHacks x Polkadot: 10 new projects emerged** [https://www.chainnews.com/articles/458288573651.htm\](url) We can't appreciate more to the council for making such a quick decision to support us to make this amazing event happen. We also want to thank all the amazing hackers and partners for making this event great. DoraHacks plans to run more grants and hackathons globally in 2021 and wish that we can play our little part in making Polkadot and Substrate community strong. DoraHacks Team