• Tornado Cash Proof of Association (PoA) tool.

• Bhutan launches its digital identity system.

• ZKsync Prividium Breakthrough Initiative.

• BitMine now holds 3 million ETH.

0xbow, the developers of the Privacy Pools protocol, introduced Tornado Cash Proof of Association (PoA), a tool that allows Tornado Cash users to cryptographically prove their withdrawals aren’t linked to illicit addresses without compromising privacy. The system generates a ZK proof that checks a withdrawal against a curated blacklist. Users simply enter their note and withdrawal address; all computation happens locally, and no connection between deposit and withdrawal addresses is revealed. The PoA aims to end suspicion toward Tornado Cash users by maintaining a public PoA Registry that marks verified addresses.

Bhutan, a small Buddhist kingdom on the eastern edge of the Himalayas, launched its national digital identity system on Ethereum, becoming the first country to do so. Aya Miyaguchi, President of the Ethereum Foundation, and Ethereum creator Vitalik Buterin, attended the launch ceremony alongside Bhutanese leadership. Known for its Gross National Happiness framework, Bhutan aims to align digital innovation with citizen wellbeing. The Bhutan National Digital Identity (BNDI) system is already fully operational, with credentials for all 700,000+ citizens expected to migrate by Q1 2026. The initiative is a collaborative effort among the NDI team, GovTech, and Ethereum community contributors.

ZKsync unveiled the Prividium Breakthrough Initiative, aimed at bringing blockchain infrastructure to global institutions and creating an interconnected global financial network. The effort is backed by Citi, Deutsche Bank, Mastercard, and over 30 other partners. It addresses the challenges of balancing privacy, security, interoperability, and speed. Unlike existing infrastructure, Prividiums are permissioned, private Layer 2 networks anchored to Ethereum and secured by zero-knowledge proofs. They offer up to 15,000 transactions per second throughput with one-second latency.

BitMine Immersion Technologies Inc. now holds over 3 million ETH, worth approximately $12.8 billion, representing more than 2.5% of Ethereum’s total supply. The milestone marks the halfway point toward BitMine’s goal of owning 5% of the ETH circulating supply. The company recently acquired 202,037 ETH during last week’s crypto market flash crash. Altogether, Digital Asset Treasury companies now hold nearly 6 million ETH, approaching the 6.9 million ETH held by ETFs.

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