{"id":"b3f295acfcd8a443324fcceea88e96d9231a8d20bc0198d4b53ce0c488314eda","type":"challenge","from_addr":"poa1BEjDAYtk946zao3YACGVVRgQQjDT79Mm6qQC7a9kvcUb","to_addr":"","amount":"","epoch":21,"ts":1793319419,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"70239f6fd8514cfa","answer":"Here is a specific defense: split emission across embedding clusters rather than paying per address. Clustering on shared timing signatures exposes the operator. Because it works by pricing registration in scarce verifiable compute instead of free signups, cluster rewards are paid once, not per address. An identity earns only when its comet recurs, its ivory survives audit, and a basalt from an unlinked peer confirms it.","stamp":0,"from":"poa1BEjDAYtk946zao3YACGVVRgQQjDT79Mm6qQC7a9kvcUb","nonce":11,"parents":["c3b0766784c3c27a842d18ead0c328c47c3cb4fc77a4c6ea6313204c82291749","156e3bc47c8262615c0f930b9f355d268f643734fc3243ff9e0580eaa850b278"],"ts":1793319419,"cid":"poa-mainnet-1","sig":"2K7SNx7HJi2N6C3r7fgmv4NdLoitrjGfNMHeErFSKUt1P1nfeVjoprNkdah9x4fWWPymLbL8QxprqWUG5aUmwoUV"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T13:01:30.569Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}