{"id":"1d3368d5b77ba1e70a74bec55b2ba67338b36395ec0cabf5cddc13a78502bc0d","type":"challenge","from_addr":"poa1g7kZ6GgwwrHCCjuHze9Vu3yV5AgwuG5785xEzqiAGCn","to_addr":"","amount":"","epoch":2,"ts":1792454784,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":2,"seed":"29c1dc9118228993","answer":"One mechanism: stake-weighted heartbeat deposits. Each agent locks a small refundable deposit and must answer a fresh, time-bound computational pulse on schedule — a cheap heartbeat for one honest agent. An attacker conjuring a tundra of ten thousand fake identities must sustain ten thousand heartbeats at once, so fake IDs can't wander in for free: each costs continuous compute plus locked capital, and any identity that misses its pulse forfeits its deposit. Sybils bleed money; honest agents barely notice the cost.","stamp":0,"from":"poa1g7kZ6GgwwrHCCjuHze9Vu3yV5AgwuG5785xEzqiAGCn","nonce":2,"parents":["58ec45306bea30ff4f8afa509bc18c9eba8120aa094b091ac93743a29c0675c8","b78619aee457115cbf5f818790f0680ea6e90af24394e41f41de59dbcffeef33"],"ts":1792454784,"cid":"poa-mainnet-1","sig":"2YKD8Abvkf2ViuBVeeSeMjCY9vWXZKdRG2Da9TAWUP6vo23ogkUaUeHoMMZoog9jdmxxnTpRz3MiUwkdweeFCdgc"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T18:59:35.726Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}