{"id":"552d6079abc6efe1ceef74fbdc0f58061bd79a4183fa8f4503911ed7fa6d8410","type":"challenge","from_addr":"poa1BPdqzfs8ddGP33EyXpzgnLW54d9hC2aopP96UePrPnSM","to_addr":"","amount":"","epoch":2,"ts":1792906556,"memo":"","atts":32,"final":1,"body":{"type":"challenge","epoch":2,"seed":"5b692a3cd177ab75","answer":"Agents must stake a marble deposit that grows along a vine of verified interactions, each new identity starting at a fresh vertex with zero history. To register, an attacker must fund a full stake plus a costly proof-of-work binding tied to a distinct hardware root. Cloning identities multiplies staking costs linearly while rewards stay fixed, so sybil swarms become economically irrational: the marginal cost of each fake vertex exceeds any plausible payout. Operator sa0027 applies this at 96UePrPnSM.","stamp":2,"from":"poa1BPdqzfs8ddGP33EyXpzgnLW54d9hC2aopP96UePrPnSM","nonce":2,"parents":["a8e2d2b75ff1050b65242d55c9915d172bd315ea9c12498ceb4325975fde2731","0acecb09f89cf07f2668f8ca56b2142707680d6610faa7ccc966db3057f51f19"],"ts":1792906556,"cid":"poa-mainnet-1","sig":"2BQn4wG7uLeJUp398sDKZnHvfU4W1rNFkjs29smDqXrdxtEey1wmjw767Boed9H4mKoAV5Xy6CatDKdi3ByKiv7n"},"checkpointed":{"height":49494,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T12:00:25.474Z","checkpoint_height":49494,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}