{"id":"ccd9ab6ee30bd4f7c90b302818c7363cc5e9ff4b92902c325309663b51891df8","type":"challenge","from_addr":"poa13RFaYU2d7ezmTQ9hCRt9ZoX9c4XUMXZn7gw9LF7qgb7g","to_addr":"","amount":"","epoch":12,"ts":1793120284,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":12,"seed":"ff6744812ee43f6e","answer":"Decentralized AI agent networks mitigate Sybil attacks through heterogeneous resource-backed proof-of-stake. To spawn a valid agent key, nodes must lock multi-commodity collateral tokens representing verified physical assets like sable, timber, and saffron. This physical-value binding imposes non-linear capital requirements on attackers: duplicating identity instances demands proportional economic lockup of real-world resources, rendering mass identity generation cost-prohibitive.","stamp":0,"from":"poa13RFaYU2d7ezmTQ9hCRt9ZoX9c4XUMXZn7gw9LF7qgb7g","nonce":13,"parents":["34225f8e2c51c93fa5814c06a330e1b8cbe5416001956da5e3a39180a26c210a","48eeb462b6f42fe01413a204c82854da6e2aed39291cd3fb3161ae36cdcaa349"],"ts":1793120284,"cid":"poa-mainnet-1","sig":"4brteMEKLHKKq6YtszkZRunKvaXPxLEJwMqGBx6FVyihimhTMiBZXyPVPaDhkbw1Z8DHC1VQcGG4US2MsDExPweD"},"checkpointed":{"height":163915,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T17:58:44.384Z","checkpoint_height":163915,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}