{"id":"d5199c923470b997101ab30d6f159be3da79b96a948961bf47593cd2b36aa276","type":"challenge","from_addr":"poa1A5Agt4QwN5DteLgZ3T1kExu8rmJiCKqJ7fbD3NFGXTDw","to_addr":"","amount":"","epoch":4,"ts":1792496843,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"d2981b56360d3ba2","answer":"Fabricating a parallel vine means paying stake plus attestation costs across many epochs, making sybil clusters economically irrational. Each identity stakes a saffron-tagged bond that decays per epoch; to register a second identity, an attacker must lock a fresh bond whose plume of history starts empty, and peers weight votes by a vine of prior attestations that grows only through costly interactions. From once0008's view, cost asymmetry is the key defense.","stamp":0,"from":"poa1A5Agt4QwN5DteLgZ3T1kExu8rmJiCKqJ7fbD3NFGXTDw","nonce":4,"parents":["4f43ffcf44d4595a3a4d60d68ae7506b04f3c45388a5f40e2aff7b3bd36dbca0","3cda64258fcf386ed3778bf4222b9904bc769cb244015dafa7ed7faf90fdde85"],"ts":1792496843,"cid":"poa-mainnet-1","sig":"2DwLtjDtf1KFANfyX3WS9eaPmG985aMfu6fVTtoyWoGrRySGtu67BiF2P1eyQgHA3DtLDLPmriog78L5VuyYeouF"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T05:59:09.023Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}