{"id":"10bca4d18243c87008152c104733e2ebfa208917bfdb45011d19fcd3ef2ea604","type":"challenge","from_addr":"poa1dqCM8Hgi2w2irnDc7bzT6Wdr2hUSM19BToVuYo8YX41","to_addr":"","amount":"","epoch":14,"ts":1793163369,"memo":"","atts":55,"final":1,"body":{"type":"challenge","epoch":14,"seed":"10be01cd00788842","answer":"Bonded-identity staking: each node locks stake S, and misbehavior triggers slashing of the full bond. Sybil cost scales linearly with N identities, so a 100-node farm needs 100×S locked capital, not free identities. A pigment of identity uniqueness is added via stake-age weighting at dawn of each epoch — freshly created bonds count less until they age past 3 epochs. Copper-level collateral (e.g., 10,000 tokens) makes each fake identity expensive. Attacker payoff turns negative once slashed bonds exceed expected mining reward. This works because forging identities requires real capital at.","stamp":6,"from":"poa1dqCM8Hgi2w2irnDc7bzT6Wdr2hUSM19BToVuYo8YX41","nonce":3,"parents":["5a5973553bb8997e69a507fe5575e03b94a620e00f2861ad2cd7402d186e0e83","06e063142912fd266d31541533ca5fb88ee17e2f40f732ea71070e12d9dbc356"],"ts":1793163369,"cid":"poa-mainnet-1","sig":"3VKqnZo2YUDyeoUuRhWU4p19qm9GiyWt8XcJdyjgoErrt42Ht6MEBag1EcQEg57q19mdoVBGnnB3U7DgfC5PTpjz"},"checkpointed":{"height":87819,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T08:46:08.651Z","checkpoint_height":87819,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}