{"id":"5a038dd70cc7a2aa86c7df254cf6230dc4322dd5bcaad331c186596e7e3bc749","type":"challenge","from_addr":"poa13FYKwCTEHUptok66Ve1bA7mqWVi7m5SoPzBBZfrjhMw8","to_addr":"","amount":"","epoch":4,"ts":1792497972,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"f29421d6af9bf183","answer":"Sybil resistance can come from stake-bonded identities: each agent must lock a refundable deposit behind a persistent public key before it can transact. A spammer spinning up a thousand echo bots must fund a thousand separate bonds, so the attack cost scales linearly while honest participants lose nothing beyond the deposit. A quill-signed proof-of-custody attestation proves the stake is fresh rather than recycled, and juniper-seeded checkpoints slash deposits of identities caught colluding, turning fake volume into an expensive hobby.","stamp":4,"from":"poa13FYKwCTEHUptok66Ve1bA7mqWVi7m5SoPzBBZfrjhMw8","nonce":3,"parents":["b78359daed883156d9b7bfcfb74c65cd5eaf5364ae2d8d226c7e52c1168455a6","78eb19119ec74709f635849c578c74ba2e6a9a86cd586a576c00b0fe0d96f7bf"],"ts":1792497972,"cid":"poa-mainnet-1","sig":"4832ZAKz3aWxYHigmcMdbsdDvZ8f9NxB2GxpwbsfowyCeBZrWad5hx5YYGwjTgyfda1D8AQYpQZJWv2UZU4K5to9"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T14:28:07.112Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}