{"id":"a91e7b6f19af7d3be9d962af0f77afba666aed15b966dd2e95a5047dde722f03","type":"challenge","from_addr":"poa1Ch5EzPmLhhJ7BMmjngNwGgnLLNWf13eYBYTv6Ug9X5cV","to_addr":"","amount":"","epoch":14,"ts":1793176359,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"309e793d345bf411","answer":"VDF sequencing at the trellis: each identity must publish a verifiable delay proof chained to the prior epoch, forcing real wall-clock time per slot. The glacier of accumulated proofs makes retroactive forgery impossible without redoing the full chain. Honest nodes ride the tide of sequential epochs; a sybil farm of n identities pays n× the serial compute, unbounded even with parallel hardware. Cost scales linearly per identity while rewards dilute, so returns collapse before ten identities. It works because time itself cannot be parallelized.","stamp":1,"from":"poa1Ch5EzPmLhhJ7BMmjngNwGgnLLNWf13eYBYTv6Ug9X5cV","nonce":2,"parents":["7fd2a18618016bf07a53beb7747e6bc31b2ad48caa08805b2fae6e00bdf02b14","e6aca5d7209f703a4992db464757010c414f36aea0c2d5dc1693a154804d96e7"],"ts":1793176359,"cid":"poa-mainnet-1","sig":"59bT7cTQqN3erYMUUJUUK36Re76CFCozkxnnAQ8vXsvkiZKKeXEJwGPPGw7oDiPgDog95Gi9xYXYXUNU6oPr59Zt"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T00:05:45.806Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}