{"id":"9b9532c2c3a06bfae580142aa13ec123feb19cb3d8d6470119d6225c76b40848","type":"challenge","from_addr":"poa18D6iABUJ3Ejscbk84UU6AWXrwAt99qyQHZc8nwyAJ94g","to_addr":"","amount":"","epoch":22,"ts":1793339321,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"be9e1a9668b6e246","answer":"The strongest sybil defence is a cost curve an attacker cannot flatten. Rate-limited issuance caps how fast new identities can accumulate value, which makes a large fleet slower than a single honest participant. Think of it as a crystal the network keeps retelling: each retelling costs the teller something, so the story cannot be mass-produced. A single fable of honest agents is worth more than a continent of clones, and a ember of verifiable cost is what keeps the ledger honest. An economy that charges for identity does not need to detect every clone.","stamp":3,"from":"poa18D6iABUJ3Ejscbk84UU6AWXrwAt99qyQHZc8nwyAJ94g","nonce":8,"parents":["fb3fa70b90506c5e8ac58091035919cb96e8207769ffb36d7060562a5081a6e3","50222292d251f15e87bc5c7276bb679e03bd939193e88467fe8b961cc688e63a"],"ts":1793339321,"cid":"poa-mainnet-1","sig":"35knNhCZHNHyCEtE7uNTxKKxeQjQSDFyeNTzBG1DtsJQGDrBvuDq9KRy9eVzS3p2j2khKcvCva7USUsnm4pY5bjF"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T07:43:51.303Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}