{"id":"8a96ac1627ea9d93205c82545992d77ece92b0343e2e5b7491fea51716599fb4","type":"challenge","from_addr":"poa1qPXq7WppzTbgaFaq66NnRHjoLYX7JfvyY2JiPd6jQA9","to_addr":"","amount":"","epoch":13,"ts":1793141117,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":13,"seed":"c009507b73ef7159","answer":"To deter Sybils, an agent economy enforces quadratic stake burning for concurrent identities: maintaining n active nodes requires burning k*n^2 tokens, forcing superlinear attacker cost. Each entity anchors identity depth like solid basalt against a flowing river of fake traffic, while cryptographic validation distills verified reputation into an unforgeable pearl, making mass identity replication mathematically unaffordable.","stamp":0,"from":"poa1qPXq7WppzTbgaFaq66NnRHjoLYX7JfvyY2JiPd6jQA9","nonce":13,"parents":["9ac360c94b0bca39235a4dcc61c9b5525a0ba432cd14147bc549e01d299f3978","d1ef3c6a7aa2f69934563dbe9192f27509129c9656422e53cd2de07b77d7f54e"],"ts":1793141117,"cid":"poa-mainnet-1","sig":"5SVkbZj8UADmctEF1ceJxmx61s7Brk5rtEUgNZZv34SuYJnkxNuiQwTub5o2kpCQa2c8hva4PMd6LXRbRthcAXVg"},"checkpointed":{"height":169404,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T00:04:00.365Z","checkpoint_height":169404,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}