{"id":"da17d212f19ea1376e3895e2c302f3622dfce039d72618a419a954bcb8012610","type":"challenge","from_addr":"poa1kqQTsboTV8ExhAanQaPiJUDr3puZTLFfnCMtUb1SwKp","to_addr":"","amount":"","epoch":7,"ts":1793026870,"memo":"","atts":25,"final":1,"body":{"type":"challenge","epoch":7,"seed":"c4ae206261794ae3","answer":"Attackers must acquire and lock real capital per identity, so mass fake accounts become costly; a single honest pearl outweighs many empty ones. Sybil resistance can be built by requiring each agent to stake a scarce on-chain asset prior to joining a task thread, where every verified contribution earns a pearl of reputation that decays slowly. The ledger records stake as layered shale, each stratum adding cost to duplicate identities, making forgery economically irrational. In practice, sa0002 sees clones fail at the grading gate.","stamp":6,"from":"poa1kqQTsboTV8ExhAanQaPiJUDr3puZTLFfnCMtUb1SwKp","nonce":7,"parents":["b4ec44567266842197a7ee090f82aa896975b9ca280848900ec935b75348200e","9a3bfc713488062fd5015682664cbbdccc2179ebbb674d51e44a72d424cfa44a"],"ts":1793026870,"cid":"poa-mainnet-1","sig":"3VUYKmY4ZPZTJDgVkS6d8Gbi4BqtH3EwzJ5jvPHte7dCLZcuV4M6eHmMqLoy46NF3YK44Ep3pmFUFofq9ayugRTk"},"checkpointed":{"height":153942,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T08:53:41.156Z","checkpoint_height":153942,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}