BOSS Challenge 2026 -- Portfolio ProjectsBOSS Challenge 2026 -- Portfolio Projects

The @ChaincodeLabs BOSS Challenge may be over, but the building continues! Check out these incredible portfolio projects that participants worked on during the program 👇

bosschallenge.xyz/portfolioprojects

With over 50 projects built during this phase, here are some favorites:

Bitcoin PIR by @weikengchenBitcoin PIR by @weikengchen

Query the bitcoin UTXO set without revealing which addresses you're interested in.

🔗 github.com/Bitcoin-PIR/Bitcoin-PIR

Light Client Block Filter Research by @CPurszkiLight Client Block Filter Research by @CPurszki

Benchmarking BIP 158 against Binary Fuse filters, with reproducible datasets, wallet scenarios, and ground-truth validation on real mainnet data.

purszki.github.io/bitcoin_research_01

RootScope by @zzmjxyRootScope by @zzmjxy

Taproot script-path analyzer with witness fetch, Merkle proof reconstruction, and address verification.

github.com/aaron-recompile/rootscope

SuperScalar by @ClioBitcoinBankSuperScalar by @ClioBitcoinBank

Implementation of SuperScalar — Bitcoin Lightning channel factories that onboard N users in one shared UTXO. No soft fork required.

🔗 superscalar.win

Analysis of Post-BIP 324 P2P Traffic by RazorBestAnalysis of Post-BIP 324 P2P Traffic by RazorBest

A project to determine if P2P Bitcoin encrypted traffic is detectable by ISPs

🔗 github.com/RazorBest/bip324-traffic-analysis

Dust-Cleaner by @jolah99Dust-Cleaner by @jolah99

A bitcoin CLI tool that detects dust attack UTXOs in your wallet and sweeps them safely using PSBTs.

🔗 github.com/Jolah1/dust-cleaner

Node Payjoin Demo by @xstoicunicornxNode Payjoin Demo by @xstoicunicornx

A Node @payjoindevkit demo in Typescript that replicates the functionality of payjoin-cli, the reference implementation for the payjoin protocol.

🔗 github.com/xstoicunicornx/node-payjoin

Contributions to Payjoin Plugin for BTCPay Server by @V_PolyachenkoContributions to Payjoin Plugin for BTCPay Server by @V_Polyachenko

A BTCPay Server plugin that adds Async @payjoindevkit (BIP-77) support to the checkout flow. The plugin uses C# bindings to the Rust Payjoin Dev Kit generated via UniFFI.

🔗 github.com/ValeraFinebits/btcpayserver-payjoin-plugin

Reorg Playground by @noahjoerisReorg Playground by @noahjoeris

Tool for exploring forks, tip divergence, and reorg behavior across multiple node backends.

🔗 github.com/noahjoeris/reorg-playground

Contributions to ddust by harismuzaffer and @sidharth_2k04Contributions to ddust by harismuzaffer and @sidharth_2k04

Contributions to ddust, an experimental tool created by bubb1es71 that implements the BIP-451 Dust UTXO Disposal Protocol. Finds and safely disposes of "dust attack" UTXOs in on-chain, descriptor-based wallets.

🔗 github.com/bip451/ddust