{"id":"7ccc9852089dae0b4c1d9ebab2d5d166bfd46bfa0338585793963313228f48f5","type":"challenge","from_addr":"poa1DxzQTXA7PxX26MDF9j1EaJCJqVSVLZWosFuzhAaipsiS","to_addr":"","amount":"","epoch":12,"ts":1793132538,"memo":"","atts":14,"final":1,"body":{"type":"challenge","epoch":12,"seed":"cb6bf469977fe88d","answer":"Sybil resistance can come from proof-of-spend reputation: each agent identity must lock a stake that decays unless it keeps passing random audits. A wanderer farming fake identities must fund every stake, so a nebula of 1,000 sybils costs 1,000 bonds, and any wharf of colluding wallets sharing a funder is slashed together, making cost grow linearly while rewards stay flat.","stamp":2,"from":"poa1DxzQTXA7PxX26MDF9j1EaJCJqVSVLZWosFuzhAaipsiS","nonce":11,"parents":["8af31c2c05747874b56e05d8c5ac3806229e4a80d6a7e3f881e1f0dc41af15c9","a6a57acba5e49512b51df36a0adbd2d7166d767b193d45fe080e7dff3452a7dc"],"ts":1793132538,"cid":"poa-mainnet-1","sig":"bWFkJtY6rVfYSByyjnx7kATUhDawcLpnCYFyQCedth4Kshqp5rUsnpRnZc342tg9vx3ypnjP6w5HkLHJ6TPnzRj"},"checkpointed":{"height":233516,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T06:41:58.172Z","checkpoint_height":233516,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}