Swihart warns private money is humanity’s last line against AI surveillance

Wednesday, June 3, 2026 · from 2 podcasts

A16Z and Paradigm bet $25 million that user-friendly Zcash wallets can beat AI-driven financial surveillance.
Bitcoin’s ‘stability trap’ blocks advanced privacy tech, leaving adoption to Ethereum-based solutions like Railgun.
The share of private Zcash transactions tripled in two years as users shield balances from permanent exposure.

The war for financial privacy is moving from theoretical to existential. Josh Swihart, CEO of the Zcash Open Development Lab, built state surveillance tools earlier in his career and now argues AI-powered aggregation of public blockchain data will eliminate personal agency. “Without the ability to transact privately, users lose the ability to exist as independent actors on the web,” he said on Bankless. His lab just raised $25 million from a16z and Paradigm to transform Zcash from a research project into a consumer product, betting private money is the only hedge against a “captured” financial system.

“If every transaction is public and permanent, AI agents can map a citizen’s entire life, disposable income, and social ties with surgical precision.”
- Josh Swihart, Bankless

The key metric isn’t price, but the shielded pool - the amount of Zcash held in private addresses. It grew from 11% to over 30% of total supply in two years, signaling a structural shift toward real, sticky utility. Swihart’s team is focusing its roadmap on post-quantum security and scaling for billions of users, making privacy the default in wallets like Zashi.

On Ethereum, the transparency is already a operational risk. Kieran Mesquka noted on Bitcoin Takeover that a simple act like splitting a bar tab can expose a user’s entire DeFi portfolio on Etherscan. His protocol, Railgun, uses zero-knowledge proofs to let users swap on Uniswap or supply liquidity directly from shielded balances, integrating privacy into existing DeFi activity instead of forcing users off-chain.

“Privacy succeeds when it sits alongside actual usage. Forcing users to leave Ethereum to find privacy is a losing strategy.”
- Kieran Mesquka, Bitcoin Takeover Podcast

Railgun employs a controversial “Private Proof of Innocence” system, allowing users to cryptographically prove their funds aren’t illicit without doxxing themselves to a central authority. This pragmatic compliance contrasts with Bitcoin’s cultural impasse. Mesquka argues Bitcoin’s prioritization of stability has created a “stability trap,” pushing advanced cryptography like ZK-Snarks to more expressive chains and leaving Bitcoin’s privacy as an afterthought. As AI surveillance capabilities accelerate, the divide is between chains building usable privacy now and those betting ossification is a feature.

2 Sources:

Bankless Bitcoin Takeover Podcast

#Privacy #Adoption #Custody

A16Z Bitcoin Ethereum Zcash

Source Intelligence

- Deep dive into what was said in the episodes

Bankless

"ZODL is to Zcash What Coinbase Was to Bitcoin" | Josh Swihart on ZEC’s Awakening • Jun 1

Josh Swihart believes privacy in internet money is existential to prevent dystopia. He agrees with Balaji's statement that society faces a binary choice: Zcash or communism.
Swihart argues true censorship resistance and security for crypto as internet money are impossible without built-in privacy. He contends privacy is required for personal agency.
Swihart began his career building intelligence systems that aggregated public online data to profile individuals. This experience drove his search for private cryptocurrency solutions in 2016.
The launch of the Zashi wallet, now ZODL, reversed declining shielded pool growth. Adding hardware wallet support and swap functionality via Nillion and Maya caused shielded adoption to go vertical.
Swihart says building private systems requires two to three times more engineering effort than non-private ones. The challenge is making that complexity invisible to users.
Swihart argues the perception of Zcash as the 'compliant' privacy coin is memetic, not regulatory. Exchanges like Gemini support shielded withdrawals, proving compliance is possible with engineering work.
He views the shielded pool size as the key adoption KPI, not price. The shielded pool grew from 11% of ZEC supply in early 2024 to over 30%, representing sticky, utility-driven adoption.

Also from this episode: (7)

Protocol (3)

He co-founded ZODL after leaving the Electric Coin Company to address governance and UX issues holding Zcash back. The ZODL team comprises the entire former core engineering team from ECC.
Swihart states the ZODL roadmap focuses on three areas: achieving post-quantum security, scaling for billions of users via Project Takion, and building a complete parallel financial system for usability.
Swihart dismisses the store of value versus medium of exchange debate for ZEC, focusing on utility. He believes ZEC is technically superior to Bitcoin but remains drastically undervalued.

Startups (3)

ZODL raised $25 million from Paradigm, A16Z, Winklevoss Capital, Coinbase Ventures, and Chapter One. Swihart prioritized investors aligned with the mission over just capital.
Balaji Srinivasan framed ZODL's role as analogous to Coinbase's for Bitcoin. The thesis is that ZODL's value could 1000x by delivering user experience on the Zcash protocol.
Swihart claims major investors allocated 75-90% of their Zcash-focused investment to buying ZEC directly, with the remainder funding ZODL to create a symbiotic growth relationship.

Politics (1)

He engages with policymakers and says agencies have privately acknowledged citizen financial data exposure is a national security problem, but previous administrations intended to suppress crypto rather than solve it.

#Macro #Markets #Digital Sovereignty #Privacy #Adoption

Bitcoin Takeover Podcast

S17 E27: Kieran Mesquka on Railgun & Building Privacy • Jun 1

Kieran Mesquka argues public blockchain activity, especially on Ethereum, risks leaking sensitive personal habits and financial strategies, making privacy a necessity for serious adoption.
Mesquka distinguishes Railgun from Tornado Cash and Zcash by its ability to execute DeFi operations directly from shielded balances using multi-calls.
Naomi Brockwell’s privacy approach focuses on incremental improvements through intentional behavior, like opting out of unnecessary data sharing.
Mesquka attributes law enforcement issues for Tornado Cash founders to public relations and marketing choices, contrasting Railgun’s approach.
Railgun uses a Private Proof of Innocence (PPI) system to filter transactions, aiming to maintain a clean privacy set and avoid mixing with illicit funds.

Also from this episode: (9)

Big Tech (1)

Modern smart TVs collect content ID data from any HDMI source, not just built-in apps, creating pervasive backdoor data collection.

AI & Tech (4)

Mesquka cites Groth16 zk-SNARKs as the current sweet spot for Railgun, balancing cryptographic durability, verifier efficiency, and scalability.
The Railgun protocol has been deployed to Arbitrum, BSC, and Polygon, with Ethereum remaining the primary chain due to its DeFi activity.
Future privacy tech interests for Mesquka include private information retrieval standards and Ethereum EIPs like 7702 that improve wallet programmability.
Mesquka engaged with Ethereum after its launch because Parity’s embedded Remix IDE allowed scripting without needing to fork a full node.

Culture (1)

Mesquka’s privacy philosophy prioritizes building privacy where usage exists, rather than convincing users to abandon modern conveniences.

Protocol (3)

Mesquka suggests Bitcoin’s cultural prioritization of stability over feature expansion has hindered the adoption of advanced privacy solutions like Zcash.
Kieran Mesquka discovered Bitcoin through online cypherpunk communities and built mining clients to understand its consensus mechanics.
The Railgun project is roughly six years old, with Mesquka being a prominent public contributor but not claiming majority credit.

#Privacy #Markets #Regulation #Startups