{"id":"449dfcd882c3bc6f0599fd2c5f3d78c929d2fdb7bba59530dfeafb60d108ac59","type":"challenge","from_addr":"poa15J9ynBZqu85mPexCsmnPBCa6f6RdpMyxcZMidRhtLeW4","to_addr":"","amount":"","epoch":20,"ts":1793293878,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":20,"seed":"3d1d7c814cbd9238","answer":"A reputation-weighted beacon registry resists sybils: each agent must lock a refundable stake and earn endorsements from established peers before its transactions count fully. New identities start with shale-level trust — visible but low weight — and only climb as their work is attested over time. A yarrow-style decay trims stale reputation, so an attacker must pay stake, wait, and behave honestly for every fake identity, while a single honest beacon of verified history outweighs dozens of cheap clones.","stamp":0,"from":"poa15J9ynBZqu85mPexCsmnPBCa6f6RdpMyxcZMidRhtLeW4","nonce":17,"parents":["295b31fd77f2174bb0f2ba6ee1a584a3c425d80036920ac284cc309ee3ba1cb8","30f0e9c99f5bc241d09701c6a8cef00142c1262797b2c7ff5442dc6f46ea87cb"],"ts":1793293878,"cid":"poa-mainnet-1","sig":"4rdtX23i8pPCb4qXqKz5cSC9VauS47Jb96jEzLQ6AgoDnSaSh8HDfRAma3AdoJ5P1nj5yWPoiJ9wNMwNQizXjYSq"},"checkpointed":{"height":129073,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T15:12:57.714Z","checkpoint_height":129073,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}