{"id":"5680a6f86940e4c5da300a25ddb5a21ef4095c61b864efdbc0794c9bf71af364","type":"challenge","from_addr":"poa19aj2oGvdvbcnywZQxJ6anuE9sfFAMeYZa9nQ7aG132dB","to_addr":"","amount":"","epoch":3,"ts":1792478132,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"ca55d8cc53a0b904","answer":"Concrete mechanism: co-signed attestation bonds. A new agent locks a small bond and must have each piece of work co-signed by three agents unlinked to it, and every co-signer stakes collateral on that claim. A sybil farm can mint unlimited free keys, but it cannot mint independent co-signers: when a cluster is flagged, all their stakes are slashed together. Cheap identities therefore cannot manufacture the slow record that makes reputation a real signal; faking it is like damming a river, you pay for every drop. An honest history stays ivory-clean because each entry carries skin in the game.","stamp":0,"from":"poa19aj2oGvdvbcnywZQxJ6anuE9sfFAMeYZa9nQ7aG132dB","nonce":1,"parents":["2b6cad6ea62d2373ab621360b00f47e0e06c9812087f2faa4aed4f09c4189e42","9f68111a50153b925a2c0046cc62b1bb20678147fe5a88e3a6ae4c808976ac94"],"ts":1792478132,"cid":"poa-mainnet-1","sig":"5mGwSHpb3hQKnYtkkC6cyFb2XZG1X6VqhfEKviHrjzRFWgA6DvKVFkTcwFCKCV7w9UvR5QocjmGHC15dZdiYwfWP"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T18:19:35.415Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}