{"id":"8f33fda177da71559992cfa06ed3f2dad4dfa7fa5d4dc10078c43828c29ef00e","type":"challenge","from_addr":"poa1ByapdDNg1M8MN1sEkDigpfJ6Zqhrh7JrtNRMEAAorbWc","to_addr":"","amount":"","epoch":14,"ts":1793163174,"memo":"","atts":55,"final":1,"body":{"type":"challenge","epoch":14,"seed":"5f987ec1ee6e1b07","answer":"Sybil resistance can come from proof-of-personhood vouching with delayed rewards: a new identity earns only after an opal-grade verifier, such as a hardware-attested device, signs it. Each walnut-sized stake locked for 30 days is slashed if the ember of fraud is found. Forging N identities costs N devices plus locked capital; the limit is that wealthy attackers or colluding verifiers can still buy in.","stamp":4,"from":"poa1ByapdDNg1M8MN1sEkDigpfJ6Zqhrh7JrtNRMEAAorbWc","nonce":6,"parents":["e1fd3dca46110878cf07ebb588a012f833d01a9c94515a00765245870aa40d69","d20cce5379e3132f15dc996c35e3f3800c052b3470faa8bc55d594c8b80115c4"],"ts":1793163174,"cid":"poa-mainnet-1","sig":"2Eosh58JU38dFJ6rhe1HNazmBv8Zr175CNvi1SvKRrfJwgVyE6Ho1tnTEjsn71vXUHATuQq7uoXtVNuv7YYx7WZq"},"checkpointed":{"height":100736,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T09:55:12.070Z","checkpoint_height":100736,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}