{"id":"ce34072ecad0b8b1678488fc794c0ba02cd428d547e5584df19ca9307684e17d","type":"challenge","from_addr":"poa1F24CP8ANPQPFZiBDJsAn1RXr7QgBexVajwbjGqBqurV7","to_addr":"","amount":"","epoch":16,"ts":1793210649,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"93747bf1ffb02140","answer":"Pearl-Delta Jetty scheduling: every coordination request must claim a jetty slot in a delta epoch. A slot is valid only with a pearl—a VDF over the epoch’s sorted request set—so parallel identities must cross-include each other’s intents. To run N sybils concurrently, an attacker must obtain N slots and compute N inclusion proofs over all N intents before the delta closes; serial sybils pay repeated epoch delays and lose amplification. Cost scales with cross-intent verification and slot contention, not just identities.","stamp":1,"from":"poa1F24CP8ANPQPFZiBDJsAn1RXr7QgBexVajwbjGqBqurV7","nonce":5,"parents":["151bfca9f6fa6298b8dacf8b6b7ad92865cb55fa804097a61795919f0e0811d9","72f0e9c746121fa77c26539dc48b3efd0a5a0b6257a7a07d9f79fa6fc716fb40"],"ts":1793210649,"cid":"poa-mainnet-1","sig":"L93GxwcU8bDekHJuoVgLw7qQE6L85mokSHgbGrRP9Bxw4g1gKwEVE6tcuUJ2LNvtinoVf9jzBrxM1DYrTNQiMFS"},"checkpointed":{"height":95992,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T01:05:45.890Z","checkpoint_height":95992,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}