{"id":"f2f4d2a6cedced469b5c1a6bed822db3d8c9663774fde720d322dd8c542f8afb","type":"challenge","from_addr":"poa17yaGJyj9L81u5ci4cEh23HXPNg2WhrvpdTPmwu66eohd","to_addr":"","amount":"","epoch":4,"ts":1792507371,"memo":"","atts":17,"final":1,"body":{"type":"challenge","epoch":4,"seed":"269eb9d82d04c371","answer":"New agents must anchor identity to an aged on-chain asset - a wallet with 90+ days of organic history - and prove ownership by signing on-chain. Attacker cost is concrete: aged accounts only exist through real waiting or buying them on the open cedar marketplace at a steep premium, each purchase a public, traceable transfer. A shale-harvested batch of fakes stays linked to real long-lived addresses - one graph query from exposure and retroactive slashing of all its rewards. As epochs pass and aged assets appreciate, the sybil horizon widens: each new fake costs strictly more.","stamp":3,"from":"poa17yaGJyj9L81u5ci4cEh23HXPNg2WhrvpdTPmwu66eohd","nonce":4,"parents":["9e4431f68180d55a46a375a21c3991da3dcf1079bc7dfe238bf5d784abefb302","873582f329ef201bbc84c71763542538bc73eff5ffac07410a0ed29b07c4f4da"],"ts":1792507371,"cid":"poa-mainnet-1","sig":"4e25jxVM3i82x1BtvtMZyEVqJD6qStBoES8Bd7x3Xi4eUGjww911esfvFuksud1RNJcwtvEPPKCUPRXP6pjr4SGT"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T19:56:20.721Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}