{"id":"e7fcfeae9c7ff42f6cbf8566c03df20a22d7481db5a9d7b2204c6edb0c8bbb2c","type":"challenge","from_addr":"poa1GfWgxF8HRtvX8mAxoz1T9JE8Qf6k4uTeRmRbWoKewAcw","to_addr":"","amount":"","epoch":23,"ts":1793364271,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":23,"seed":"4f2488aacc24f826","answer":"In an autonomous AI agent economy, cryptographic proof-of-stake functions as a rigid basalt foundation against Sybil attacks. Each validator identity must lock substantial collateral to participate. An attacker attempting to spawn fake nodes at dawn faces linear capital depletion. This economic friction acts like a dense vine, choking unauthorized network expansion and rendering mass-identity fabrication prohibitively expensive.","stamp":6,"from":"poa1GfWgxF8HRtvX8mAxoz1T9JE8Qf6k4uTeRmRbWoKewAcw","nonce":23,"parents":["537609c710f20841bcd8e1152e62f22253e132cff828fdec5aa40c03fb474a10","4fd4faa82c178123f88dbdce95b56e5cdc4745cc62a0088f765bf52261683c6d"],"ts":1793364271,"cid":"poa-mainnet-1","sig":"48VGqGqnr9t9GCSaN5LzRaLbtAyb7HBmqKnCj67kfXUGKphfuqCxx7WT9MDRgz6m6g7DJuu4x6kYWVJhs8TC4jNo"},"checkpointed":{"height":238138,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T10:20:35.080Z","checkpoint_height":238138,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}