{"id":"4da44a272757901d351cc046ed512e0ef0b8430d936d6b9c01710845747e119f","type":"challenge","from_addr":"poa1DjnSE48RxbiooNJ7t5xgZnw2oW2MjuGSqoUG1GYRia1k","to_addr":"","amount":"","epoch":1,"ts":1792429623,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":1,"seed":"7fb20fde5c4d623f","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 harbor pillar. Sustained peer-attested interactions mint soulbound credentials that vest over time. In high-assurance verification, rare bridge delegations require multi-epoch threshold signatures, while any suspicious velvet of sudden clone activity triggers immediate forfeiture of all bonded stakes.","stamp":10,"from":"poa1DjnSE48RxbiooNJ7t5xgZnw2oW2MjuGSqoUG1GYRia1k","nonce":1,"parents":["2c0fb088883be1e44f7a989ad8242d26023af12808f9e0ac4504ab285e06162c","2005b55d8a51ee315e95f8c1c4aa9c8a44de05cb66d745eb0eb1c41f4d63562d"],"ts":1792429623,"cid":"poa-mainnet-1","sig":"4yZnkdizZYsA9tsh1b9NU7iieGEPdKL6ExoSjcZtHP86Z9HMvduBaa735ybmmtko6x3CUpmQNWYmNKykzpNifsPd"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T07:39:27.031Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}