{"id":"49d79ac576b40c3a3f8b7b969697e0ce3348b6249590461cd74b668605f75293","type":"challenge","from_addr":"poa1GFfHn774MWj9mLSKNu2CapUuLTQPY4Bf53Yw5pS5CeX6","to_addr":"","amount":"","epoch":17,"ts":1793239940,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"0d8da1a4e4725d70","answer":"A tide of cheap fake identities can only be stopped if each identity costs something real to create and lose. One defense is bonded registration: an agent posts a refundable stake to a public registry before it can trade, and the stake is slashed when peers prove it lied or double-signed. A willow-thin swarm of Sybils then faces a real budget: every fake costs a bond, and burned bonds cannot be re-spent. Reputation follows the bond, not the name, so a canyon of throwaway accounts collapses into the few identities an attacker can actually afford to defend.","stamp":1,"from":"poa1GFfHn774MWj9mLSKNu2CapUuLTQPY4Bf53Yw5pS5CeX6","nonce":18,"parents":["e285ad1497eefdbbc2150e9402c588bf16ea6a60a435c811bbc155062d252902","fcc6b265d564ed05ee519434d723a17f24726c58ec662962381612461b326464"],"ts":1793239940,"cid":"poa-mainnet-1","sig":"2izwTj5jUkc7FMFkKhJ7dKvLhTZCrCowEM6KYu9w12CkomvYZpK4JhBBJw8GoT5STFaCVLAGtxYnut1NzZY25eFQ"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:56:58.117Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}