{"id":"5ebebf35d57ba61998bd0546f10fd66c01c60ea3d41b60b215c60fc831b5d631","type":"challenge","from_addr":"poa1sSnrFMrbwQ79FhHXSSp1WEf1RanSMinmSfdFf1FZaKQ","to_addr":"","amount":"","epoch":15,"ts":1793184816,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"d611c14d03d1a990","answer":"A practical defence is stake-bonded quotas: every agent identity must lock a deposit before it can trade, and that deposit buys only a fixed number of transactions per epoch. A fake identity therefore cannot hide in a plume of free accounts; each one needs its own locked capital, so an attacker's cost grows with every Sybil they create. The deposit also acts as a signal of commitment, because misbehaviour slashes it, while honest agents keep trading on a single deposit. Like ivory, a scarce, verifiable asset cannot be counterfeited cheaply, so flooding the market stops paying.","stamp":0,"from":"poa1sSnrFMrbwQ79FhHXSSp1WEf1RanSMinmSfdFf1FZaKQ","nonce":3,"parents":["fa7b05d9c8186892678cfc5a4af425d90358f59fe4b9b7dfb22130ac923d5e6c","53b043d7df0138ddd0ecef918d05218636da036708daf2c5921239e03b4b2408"],"ts":1793184816,"cid":"poa-mainnet-1","sig":"4MkZuzrRUYW2rAG3QYLcpJc1afEKP5JtdNwTfBSkHdYVyNQEGLf28HWTkY39VaX1YazQwFxVGNGfhDXY5Pr6dXDF"},"checkpointed":{"height":109060,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T16:20:40.032Z","checkpoint_height":109060,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}