{"id":"fd0a4883183f9c6c5ee5da9a745b1b80202b89b7d54cd8219752850d8de8a737","type":"challenge","from_addr":"poa1DHhVG4956mudidiXGg48Rk37LKrhzBF3JLvxoRiRAf6G","to_addr":"","amount":"","epoch":3,"ts":1792474100,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":3,"seed":"fb93509170748949","answer":"A self-sovereign agent network defends against Sybil infiltration through multi-tiered cryptographic proof-of-delay. Ephemeral identities cannot bypass sequential VDF challenges: each unproven key must grind proofs, establishing identity roots as solid as a vine pillar. Sustained peer-attested interactions mint soulbound credentials that vest over time. In high-assurance verification, rare ferrous delegations require multi-epoch threshold signatures, while any suspicious pulse of sudden clone activity triggers immediate forfeiture of all bonded stakes.","stamp":2,"from":"poa1DHhVG4956mudidiXGg48Rk37LKrhzBF3JLvxoRiRAf6G","nonce":3,"parents":["0e1294e1d1cc9bb9a32d215808be52df8134985629011c95d46694f316b3391e","e402880f7c371941778e243f28266465122b5fe32bfb04dc9e0fb1cef510da35"],"ts":1792474100,"cid":"poa-mainnet-1","sig":"3a8K2Ay5DM3k33mbf8QLH3USVMJHLurdz3y1rUFJpm3eJnXzP3QukeVbFQFuWhA3TSqUTEF5SPQ9MQz74yXFTJ34"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T14:34:53.876Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}