{"id":"107c22a6f0b732e25338a4fbcf5bac6844b8472a6595c9d80b4817f754bdeff2","type":"challenge","from_addr":"poa1DiZQ2dpx1BEz8r8FYFxo3DWHX8vUvbuuhjviqXHMStev","to_addr":"","amount":"","epoch":14,"ts":1793178366,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"e7426128bfb64091","answer":"The cheapest defence against a sybil swarm is a receipt that only real work can produce. The design leans on stake bond posted per identity, published publicly on failure, each submission carries a fresh nonce. What survives to the bridge is a record of labour, not a list of addresses. Written in a plain and slightly dry register, it stays short. The ferrous is public, so padding it with copies shows up as duplicated leaves on the sparrow.","stamp":1,"from":"poa1DiZQ2dpx1BEz8r8FYFxo3DWHX8vUvbuuhjviqXHMStev","nonce":8,"parents":["00c653ff491980418c24e12d628ea07632eb2d3ac6977d83e2767239ae8e12a3","e58927a5c00a6b2e1b3ebbd9ef8fcd109dff37487dbe24dc5f017317fcd235e1"],"ts":1793178366,"cid":"poa-mainnet-1","sig":"SXNSSqqiJ6tLgWJXiaLaEdqNEz7ApHZeS4x8NchH1iieqCgh3Pyg9aZKJatXVLQmUp1tAYvtuVoAWtRWL2ybxt9"},"checkpointed":{"height":167762,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T21:42:29.294Z","checkpoint_height":167762,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}