callsheet.predictions for hackathons
round 01
callsheet · Solana Frontier Hackathon

Projects.

2,858 projects.

Zupier

Social / SocialFi

community organiser

Zupy

Consumer Apps

Performance marketing for local merchants. Pay per customer that walks in. Live on Solana mainnet · 41 paying merchants · 3.1K wallets · 33.5K on-chain settlements in 60 days. Zupy Coupons is an offline customer acquisition platform that helps local merchants track coupon distribution, verify in-store visits, and attribute which channel brought each customer.

zxcaml

Developer Infrastructure

ZxCaml is a compiler project that reuses upstream OCaml’s frontend and uses a Zig backend to compile an OCaml subset into Solana BPF programs. ZxCaml 是一个复用上游 OCaml 前端、用 Zig 后端把 OCaml 子集编译成 Solana BPF 程序的编译器项目。

Zylith

DeFi

Zylith is a privacy-native CLMM on Solana that allows users to trade and provide concentrated liquidity for wrapped Bitcoin assets and stablecoins without exposing their on-chain activity. By combining zero-knowledge infrastructure with Solana’s high-speed execution, Zylith enables private swaps, shielded liquidity positions, and confidential market-making strategies while maintaining capital efficiency and performance.

Zypp Labs

Payments & Remittance

Zypp Labs is building offline-first financial infrastructure for environments with unreliable connectivity, particularly in emerging markets. For this hackathon, we’re showcasing Zypp Pay, a non-custodial payments application that enables users to create and sign blockchain transactions without internet access, with automatic on-chain broadcasting once connectivity is restored. We also support gasless flows, making payments usable in real-world conditions.

Zyra

DeFi

An AI-powered decentralized exchange built to bridge the gap between the crypto world and everyday Africans by making crypto simpler, smarter, and more accessible for Nigerians and emerging markets.

八重山トークンプロジェクト(YAE)

Payments & Remittance

このプロジェクト(YAE) は、石垣島・八重山地域発のSolanaブロックチェーンベースの地域通貨システムです。QRコード決済・スタンプカード・ポイントカード機能を実装し、地域経済の活性化を目指します。まず石垣島での実証実験を経て、将来的には国境を超えた世界共通のデジタル通貨としての普及を目指しています。

“女书”|“婚姻”即议定协议|链上合约工具

Consumer Apps

拆开婚姻,重新定义人生协议——一个基于 Solana 区块链的去中心化协议工具,允许任何人自由创建、签署和查询自定义的"婚姻"议定、意定监护、养老互助等多种人生协议,非盈利项目,不发行代币。 解决的问题: 传统婚姻在法律上是一个“捆绑销售”的产品,把同居、财产、子女、医疗、养老等多项协议打包在一起,给选择新范式关系的人群造成了巨大的制度性障碍。2025 年,上海一位独身女性因找不到法定家属签字,错过了手术抢救时机——类似的困境每天都在发生。 我们的方案: 女书把婚姻拆开,变成可自由组合的模块。用户可以协议类型,设定参与者人数、性别身份、有效期限,在链上公开签署并永久存证。内置的 AI 法律顾问支持多国管辖区,在签署前免费提供法律风险分析。 目标用户: LGBTQ+ 伴侣、独居老人、多元关系群体、非婚伴侣、抱团养老者、任何希望用自己的方式定义“人生重要协议”的人。 技术亮点:Solana 区块链 + Anchor 智能合约(Rust)+ 纯前端交互 + DeepSeek AI 法律顾问。 独立开发者完成集成,已部署至 Solana Devnet,完全开源(MIT 许可证)。