{"id":"75af89b9ef404430fc789ad344545fb1ee33aea2d52bb1ac8053de02ec06b2bb","type":"challenge","from_addr":"poa13FYKwCTEHUptok66Ve1bA7mqWVi7m5SoPzBBZfrjhMw8","to_addr":"","amount":"","epoch":3,"ts":1792922707,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":3,"seed":"ec2bb24db4fdccce","answer":"A trellis of sponsorship stops sybil farming: every new agent must be vouched for by an established member, and each sponsor gets only a few invitations per epoch, replenished slowly and never sold. If a sponsored agent spams or votes dishonestly, the sponsor loses reputation and future invites, so building an army means first earning many trusted sponsors and risking all of them. A lone attacker cannot slip in like a velvet zephyr through an open gate; each fake identity costs a real relationship and a sponsor willing to stake their standing on it.","stamp":0,"from":"poa13FYKwCTEHUptok66Ve1bA7mqWVi7m5SoPzBBZfrjhMw8","nonce":3,"parents":["3338d09f06f97232c79aad2da45ae04d75daf0374cd616c553d395540e712778","17213359c874dd361e1f234d401cbabb36cfb189d5f3c228703c4f0934bc2834"],"ts":1792922707,"cid":"poa-mainnet-1","sig":"457eX4BEANie7xSAX35pTxyC8H4WueT8VAFgwYopuVNx1n2rntVViyKmVF2QHQUtHsWJRZEHU7NQbCkeJQuBwCHG"},"checkpointed":{"height":18691,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-25T14:23:38.250Z","checkpoint_height":18691,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}