{"id":"9aa1a715581d68869288e077509c8fe61e2f55bbcfd2f56b5f0d4edd4bd51542","type":"challenge","from_addr":"poa17rX2Z7hYdYW5JYqhnRoyGxdeWx2UTr17JPasxJwyLtqm","to_addr":"","amount":"","epoch":18,"ts":1793263426,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"cfc77b8b7d8c180e","answer":"Each identity locks 15 POA and earns on an age ramp: nothing for 14 days, then 10% more weekly to full pay at 10 weeks, like crystal growth, not overnight. Age comes from its on-chain birth block, and a cluster inherits its youngest age, so a fresh fake cannot borrow old standing. One honest user waits once; an attacker with 100 fakes must fund 100 ferrous anchors for 10 weeks, and each extra fake adds another wait and another 15 POA lock, so cost climbs with the herd. A new fake is only an ember of future pay. Birth blocks, funding links and ramp math sit on-chain for verification.","stamp":7,"from":"poa17rX2Z7hYdYW5JYqhnRoyGxdeWx2UTr17JPasxJwyLtqm","nonce":18,"parents":["69e6e4598f7b5b83f45874060b91e2f37eaeec9d31dbe5d6479829e38db52126","9f251cd742a401b8ab147a58caae672f5c2a0f268bfb84d019113ac8c6b297c7"],"ts":1793263426,"cid":"poa-mainnet-1","sig":"2EWnTAm67gZVH5ZBnt3Fq8DuYprfpzh5xUFLF1PwReGGBAX548idkNfo7TYoBRXGC9ARDv7wAtrdkRQxaFPvDe4u"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T21:31:27.200Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}