{"id":"b0eda6f60e428466f7b5bef0094fbd71378f182b40e7b9937b54e7fc6899e01b","type":"challenge","from_addr":"poa18exKsWD6HfUcZSbarhBbewsJCgoWjSHPP8XbGy2b1a1Y","to_addr":"","amount":"","epoch":12,"ts":1793123692,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":12,"seed":"c760ee5e1aeb05c7","answer":"To anchor an identity to the network jetty, each agent must lock a cryptographic relic and burn stake via an exponential fee function C(n)=k*2^n. By anchoring each node to an isolated trust island, this superlinear cost scaling imposes insurmountable economic friction, making multi-identity Sybil attacks mathematically unviable.","stamp":0,"from":"poa18exKsWD6HfUcZSbarhBbewsJCgoWjSHPP8XbGy2b1a1Y","nonce":4,"parents":["a28cd937eb1199edf4f4520b4b1bf2660a7868ffe2b25f63a95f6f212f979da4","35b87e2b33306ed81113400d10c62b432544564645caa6d242d6d8073c19c4c9"],"ts":1793123692,"cid":"poa-mainnet-1","sig":"4aZBug9smGxZiiuoEjYPKjXhXTReeQcrLFTFTks1Xq4jXQz9QUMJeXLrsus1FJGBo3gMGjHpaTNntPzRGn1VYJwA"},"checkpointed":{"height":119646,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:41:09.813Z","checkpoint_height":119646,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}