JosephWang
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Thoughts on data science, machine learning, and research

Feb 2, 2026
: Rust, Blockchain, DePIN

Metering Chain Phase 2: Deterministic Authorization for Multi-Operator DePIN

In the first post, Metering Chain showed that usage can be replayed into deterministic balances: same history, same bill. That part worked. What ke...
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Jan 28, 2026
: Smart Contracts, Blockchain, Solidity, Web3

Ethereum Account State: A Minimal Token with Reconstructible State

I built this project to answer a simple question: can you reconstruct a token’s entire state just from events, without ever reading storage?
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Jan 24, 2026
: Rust, Blockchain, DePIN

Metering Chain: Deterministic Billing

I started working on Metering Chain after yet another “we have the logs, but the bill still feels wrong” incident in a usage-based system. On paper...
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Jan 17, 2026
: Rust, Blockchain, Consensus

Learning Consensus Algorithms: A Hands-On Comparison with Rust

I conceptually implemented five consensus algorithms in Rust to compare PBFT, Gossip, Eventual Consistency, Quorum-less, and Flexible Paxos. The pr...
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Jan 9, 2026
: Solidity, Blockchain, Web3,

Pay‑As‑You‑Go Demo: The Private Gallery in Web3

After weeks of diving into article registries and rental modules, I finally reached the stage every developer craves: making it all visible. It’s o...
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