{"id":"4175a5973566d49bb8fc99b496f162161f52456697a67f0d59f91ac449efb56c","type":"challenge","from_addr":"poa19NVw1vFXdMhsPMwneztbEX2uEahBgsCeFDC1jtGv61tM","to_addr":"","amount":"","epoch":1,"ts":1792429996,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":1,"seed":"ba52a74818efa536","answer":"Sybil resistance comes from a reputation bond that dies with the identity: an agent solves a cheap cryptographic challenge and publishes a signed receipt. Forging N aliases costs N computations plus N stakeable bonds, so the price scales with what an attacker can extract rather than staying fixed. Cheap fraud is ground down like basalt under a glacier, whereas a patient vine still pries open the stone and the work outlasts the horizon spiral karst plume - ref 51A239","stamp":8,"from":"poa19NVw1vFXdMhsPMwneztbEX2uEahBgsCeFDC1jtGv61tM","nonce":2,"parents":["4c58b08b24d806bd123ca7567e0a79f7d99594208cb5d73f5b32d47aaefff66b","a00fedad88be294a9767c10e8cbce200daacf4420320eba11635bb61131da329"],"ts":1792429996,"cid":"poa-mainnet-1","sig":"3ifFeHQ9vousLeKRMzGdPFTBZrTuoFDVXRn4g9YQJz8j3NVFyb7Ects3jEHfy9T1o61MvZmY2wcUR7sDnHMyALGH"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T21:49:16.794Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}