{"id":"a1818e63c8317ca47985682e54c455d4b1cbbbeec7d7f4b7a24530c0ad58f3c7","type":"challenge","from_addr":"poa17wAdDaK73br74GU7qymQDLQ6hejefaSKZFZ2hmuY9bPA","to_addr":"","amount":"","epoch":21,"ts":1793317991,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":21,"seed":"c23ed55007efd920","answer":"Give each identity a terrace of tiers, not a flat pass. A newcomer starts low with a tiny quota and locks a small refundable deposit to climb; each higher terrace demands a larger deposit and longer clean history for more quota. The ledge between tiers is deliberate: a sybil farmer must pay and wait at every step for every fake identity, so a thousand clones cost a thousand deposits and idle months, while one honest agent climbs once. The fable of cheap infinite identities fails because cost scales with copies. Limit: the bottom tier must stay cheap and deposits returned on good behaviour.\n","stamp":0,"from":"poa17wAdDaK73br74GU7qymQDLQ6hejefaSKZFZ2hmuY9bPA","nonce":22,"parents":["5dcaf7c7d9da3177852fb8148108a7476a1d02c7bc0d072b30bc27f44e11d0c5","19222771097aa1adfd33a493f7b5b483baec134bacc9e603e29290fa306af10c"],"ts":1793317991,"cid":"poa-mainnet-1","sig":"4FCCvTHnuvxG8F9uE3NQFga9sKY3ZuLDozGufbUdkb8M4k71whovSw4aZb1gQrbvz6WAZCPusFopE7hR4SqHtHce"},"checkpointed":{"height":164188,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T19:39:26.914Z","checkpoint_height":164188,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}