

farseen.eth
15.7K posts

@LifeHodlr
Indie AI Researcher(AI safety, Agentic RL and structured data) building @ScarRetreival (sparse retrieval for smart contract security)



Private swaps are now live on Jumper. Swap across 15+ chains with complete privacy, and stay protected from MEV bots, copy-traders, and trackers. Swap privately: jumper.xyz/private


Introducing LI.FI Intents. Infrastructure for apps, wallets, and neobanks to: • Enable stablecoin payments • Access real-world assets • Tap into compliant onchain liquidity Built for enterprises bringing financial products onchain.


Instead of celebrating this I'm resolving issues of mates on-boarding to web3. Everything is broken all talks about being *Decentralized* but your entry starts with a centralized exchange giving away your credentials. Imagine getting your first usdt without giving credentials or getting scammed.

Building the first end-to-end smart contract audit stack where every layer is grounded in retrieval at @ScarRetreival The keystone is SCAR — a sparse code retriever I built that hits R@10 = 0.901 retrieving from a 232k-contract corpus in 114ms. BM25 collapses to 0.308 at that scale. What that unlocks across the stack: Layer 1 (next) — agent harness calls into the tool layer Layer 2 (built) — SCAR + reranker + context-aware MCP, exposed to any agent (Claude/GPT/Qwen) over MCP Layer 3 (training data built, RL env next) — GRPO with verifiable rewards: the retriever grades the model Layer 4 (next) — Qwen3.6-27B, SFT → GRPO against SCAR The novel bit: SAE-LoRA — low-rank adaptation of Sparse Autoencoder encoder weights. 4.6M params (0.3% of the backbone) turns reconstruction features into retrieval-discriminative ones. 37.6× over the frozen SAE baseline. Weights, training pairs, eval set all open-source.


"I remember reading this exact bug 18 months ago in a @code4rena contest. I cannot, for the life of me find it again." Auditors don't have a search problem. they have a recall problem. Scar fixes that. R@10=0.901 over 232k smart contracts at 114ms. live demo at scarai.xyz.


UX is still so much broken in web3 or I'm not updated with current meta? Ex-Classmates got excited that I'm launching my research into a product and they wanna donate for the cause but cex->p2p->wallet->verify->donate. Onchain ramping is so much broken with absurd quotes.





After careful consideration, we’ve made the decision to wind down @code4rena. This community has meant a great deal to everyone who has been part of building it, and sharing this news is not easy.




Won $400 at the @lifiprotocol DeFi Mullet Hackathon — developer track. Adding $100 of my own. The full $500 → @Giveth Ethereum Security QF round. qf.giveth.io/qf/ethereum-se… $10 to each of 50 projects securing this ecosystem. Thanks @PhilippZentner @brucexu_eth @kenny_io @arjunnchand




Developer Tooling 获奖项目: 🥇 EarnForge —— 一个覆盖 SDK、CLI、React hooks、MCP tools、bot 和 studio 的 LI.FI Earn 全栈工具包: x.com/LifeHodlr/stat…

"I remember reading this exact bug 18 months ago in a @code4rena contest. I cannot, for the life of me find it again." Auditors don't have a search problem. they have a recall problem. Scar fixes that. R@10=0.901 over 232k smart contracts at 114ms. live demo at scarai.xyz.



A little over 4 days left in the Ethereum Security QF round 🛡️ Quick reminder: matching works best when it reflects real community support. Giveth uses COCM to help reward unique donation patterns and reduce sybil influence, so the strongest signal comes from genuine donors supporting projects they actually care about. Explore the round, support multiple projects, and help keep funding fair 👇 qf.giveth.io/qf/ethereum-se…