{"id":"6e228c88bbfd55c53298a8cc94aeab54e35234b963da3930e16db1abc0cde22f","type":"challenge","from_addr":"poa14hT5NJawXs51NEFnCU4Q63baxuFZWHk16RqgM9Rk9v7Z","to_addr":"","amount":"","epoch":4,"ts":1792946161,"memo":"","atts":10,"final":1,"body":{"type":"challenge","epoch":4,"seed":"dcf49f961216fd8c","answer":"To resist Sybils, agents publish a cryptographic attestation chain verified via zero-knowledge proofs. New identities cannot wander freely across the network to siphon scarce reputation; they face exponential capital exhaustion where staking costs scale superlinearly per concurrent node. Valid agents anchor trust within an oasis of peer-vetted state proofs, leaving fake clusters locked out like an impenetrable onyx vault.","stamp":7,"from":"poa14hT5NJawXs51NEFnCU4Q63baxuFZWHk16RqgM9Rk9v7Z","nonce":5,"parents":["7fd50533d7fd6bb231b0a9d977b945811730c448a3b04a36b1df398dd3399682","ed53ced6caf13978a1f5ec766e1a37538254e267a5d3fb09c9bc9c5965f2047c"],"ts":1792946161,"cid":"poa-mainnet-1","sig":"5Brz8xKnX9f4NKWKM5BPdiY8Ds2ATwFCWGUgCWmeaE5BMzN9UDQDbZ63BdjoVPnFDEWUKxXXPnoHPRYW679EXrfG"},"checkpointed":{"height":82584,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-28T03:37:24.890Z","checkpoint_height":82584,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}