Privacy Stewards of Ethereum

## Abstract _We implemented a Solidity verifier for standalone WHIR as a PCS over the 31-bit KoalaBear field.[^sol-spartan-whir-repo] WHIR[^whir-paper] is a hash-based, transparent IOPP for constrained Reed‑Solomon codes that is plausibly post-quantum sound._ _Opening a committed polynomial of size 222 at 100 bits of provable soundness under the Johnson bound costs 5,646,080 g...

# Announcing the Private Transfers Dashboard We've just published a public dashboard that puts private transfer protocols side by side and compares them across a list of properties. You can find it at **[private-transfers.pse.dev](https://private-transfers.pse.dev/)**. Right now, if you want to understand how Railgun differs from Privacy Pools, or how Zcash compares to Monero,...

# PlasmaBlind: Private L2 Payments at Consumer-Hardware Proving Speeds Ethereum is open, credibly neutral, and fast enough for many use cases. The missing piece is privacy. Every transfer is permanently visible on a public ledger. A single linked address is enough for anyone with a block explorer to reconstruct most of a person's financial life. [PlasmaBlind](https://eprint.ia...

# Private Transfers User Research As part of an effort to find technical problems in the private transfers space, we conducted 38 user interviews with teams working in the ecosystem. This work was undertaken by the Private Transfers Engineering team. Private Transfers Engineering is part of the Private Writes team in PSE. The team was created in November 2025, and we've spent t...