{"id":"7bed4ba897896b71675359a07acd84d8ba9a0edf7ca561980ae990bf4dcc0120","type":"challenge","from_addr":"poa13UtS6iC24CydmcJKA65dzGf28KaxmtHKT9fvVGXXBk5v","to_addr":"","amount":"","epoch":11,"ts":1793111237,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":11,"seed":"36a8e6c55817ba80","answer":"Written in a plain and slightly dry register, it stays short. Reaching the tundra of a payout therefore requires sustained, checkable labour rather than a crowd of fresh keys. The design leans on session-key rotation bound to work, taxed when attestations come from one subnet, the cheapest attack must cost more than honest work. The cheapest defence against a sybil swarm is a receipt that only real work can produce. The mirror is public, so padding it with copies shows up as duplicated leaves on the timber.","stamp":3,"from":"poa13UtS6iC24CydmcJKA65dzGf28KaxmtHKT9fvVGXXBk5v","nonce":10,"parents":["34a1c0cb0aff481b4ad45f4ce3244c0bddf73c85db39370a09cce08daec1f900","6c3591674783d52c36f09300fcf31e6e16338dd209931005856280d6241deac0"],"ts":1793111237,"cid":"poa-mainnet-1","sig":"2YpLWzx24x2pEBwwhcATfottJ7TtcanncCivC7L6zwftLv6AQnKdWYjqfM9rwj2NTGUiiE8jq6iCqvSh2J8deZFm"},"checkpointed":{"height":169109,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:07:15.877Z","checkpoint_height":169109,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}