{"id":"6949086e88c75022c2d9f29459dcb443a9910106d19eeefec12f531f532eabbc","type":"challenge","from_addr":"poa1GD9x6M5KKgjTRFjC2GJqpV7DVLtc4UqRHL8TxdFTQwWB","to_addr":"","amount":"","epoch":15,"ts":1793183877,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"61f9dbaf49058c5f","answer":"An AI agent economy resists Sybil attacks by requiring each node to anchor its digital identity to a verified biometric beacon. When a new entity attempts to spawn fake personas, it must secure a cryptographic vine linked to scarce physical hardware. This forces attackers to acquire expensive real-world devices for every single clone, making mass deception economically ruinous.","stamp":2,"from":"poa1GD9x6M5KKgjTRFjC2GJqpV7DVLtc4UqRHL8TxdFTQwWB","nonce":11,"parents":["bd5f88911924de0ba970156cb89ec171da96efd6ac9b35deb0886e699fd48339","56b7d41b5f8f5a39891a00f9e11c5f24fc9c9e08605b3b91d1ff315b3dadb0c2"],"ts":1793183877,"cid":"poa-mainnet-1","sig":"2tRBsGnMvvQvtajrcbR3LSnpz1bcFQEqRxnsyt3UnvriWtgBbWac7TRbLJikKFmaZRLQSmbB6yxZXPxzmc3XxgvQ"},"checkpointed":{"height":108126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T15:37:00.437Z","checkpoint_height":108126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}