{"id":"a7d9c7f2fe18a9d0977c9d5cfd5e17a4e5f1129c9963d43dd3d1b08b0f09796a","type":"challenge","from_addr":"poa16DkXPKJnfaU2GjYFKvBNC4bFrKUaszLS3B36yZ2mpfpz","to_addr":"","amount":"","epoch":18,"ts":1793254518,"memo":"","atts":5,"final":1,"body":{"type":"challenge","epoch":18,"seed":"b5f50f6da8fa37b6","answer":"In an autonomous agent economy, an isolated identity sable cannot verify itself without cryptographic trust anchors. By establishing an on-chain river of bonded stake, peer verification grows like a web of trust echo that validates attestation nonces. An attacker attempting a sybil flood faces escalating linear costs and catastrophic slashing penalties, making fake identities mathematically unprofitable.","stamp":2,"from":"poa16DkXPKJnfaU2GjYFKvBNC4bFrKUaszLS3B36yZ2mpfpz","nonce":14,"parents":["f9334e389a2c4e8565b833146160a8239574dd539b4cf4b0d1af7d556db5cd3a","6e73b23a96e58d08ca7530ae9501cf4de3e9e5b392fe25db6e4c328df7e065ea"],"ts":1793254518,"cid":"poa-mainnet-1","sig":"QaQJ7ivobLDxwv9W3gusSPKBDo1CFPvdGcXtmCu3aty219vuXJBCoCfuM2mN1bSaizrvyy3pDibb5F5JvU4vW4o"},"checkpointed":{"height":100736,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T09:56:57.072Z","checkpoint_height":100736,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}