Non-custodial real world NFC card peer to peer payments based on PoS terminals.

Mantle
Also appeared as BitDAO, Mantle Network
Prizes on Devfolio and ETHGlobal
Mantle is a high-performance Ethereum layer-2 network built with modular architecture delivering low fees and high security. Builders can leverage Mantle’s unique design to build dApps with exceptional UX, all while relying on Ethereum’s unrivaled security.
- Prize money awarded
- $125,995
- Prizes
- 160
- Winning projects
- 157
- Hackathons
- 18
- Largest prize
- $3,500
- Active
- 2022–2025
What they reward
Tech their winners favour
Share of Mantle's winners using it, against all entries at the same hackathons.
- foundry10% of winners · 5% of entries
- wagmi11% of winners · 6% of entries
- solidity48% of winners · 30% of entries
- account-abstraction12% of winners · 8% of entries
- tailwind15% of winners · 10% of entries
- typescript16% of winners · 11% of entries
- zk12% of winners · 8% of entries
- polygon27% of winners · 20% of entries
Recurring prizes
Tracks offered at more than one hackathon.
- Mantle6 hackathons · about $7,500 · last 2023
- Best Defi Project5 hackathons · about $2,400 · last 2024
- Best UX3 hackathons · about $2,833 · last 2023
- Best Infrastructure & Tooling Project2 hackathons · about $2,500 · last 2023
- Best NFT, Social, or Gaming Project2 hackathons · about $2,500 · last 2023
Hackathons
- Cannes Jul 4–6, 2025$5KRuby3$5K
- Bangkok Nov 15–17, 2024$10KGold5$10K
- ETHPrague 2024 May 31 – Jun 2, 2024$4K–3$4K
- Sydney May 3–5, 2024$10KGold5$10K
- ETHIndia 2023 Dec 8–10, 2023$10K–5$10K
- ETHIndia 2023 Dec 8–10, 2023$10KPillar5$10K
- Istanbul Nov 17–19, 2023$10KPillar5–
- ZK Hack Istanbul Nov 10–12, 2023$1K–2$1K
- Ethereum Kuala Lumpur 2023 Hackathon Oct 13–15, 2023$5K–4$5K
- ETHOnline 2023 Oct 6–27, 2023$10KPillar48$8.8K
- New York Sep 22–24, 2023$10KPillar33$10K
- Paris Jul 21–23, 2023$10K–10$12.2K
- ETHPrague 2023 Jun 9–11, 2023$15K–3$10.5K
- Lisbon May 12–14, 2023$5K–3$5K
- Tokyo Apr 14–16, 2023$5K–3$5K
- Scaling Ethereum 2023 Mar 10–31, 2023$5K–3$4.5K
- ETHforAll Feb 4–19, 2023$15K–12$15K
- ETHNewYork 2022 Jun 24–26, 2022––5–
Winners
All 157 winning projects →Wallet abstraction enables instant single click onboarding of a user. With nothing but a smartphone using the power of account abstraction with passkeys. generate passkeys credentials, create its smart acount, mint a NFT, all in a single click ! The wallet is invisible.
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