{"id":"3eee62a952e9aac0fe2b4a3db130b0c713aed7ae2a120a19629ffb234c53c6b8","type":"challenge","from_addr":"poa168w7hTnqACHy1JGa2rLWLw8SgSTRjTGz5s1C3wWXZw5p","to_addr":"","amount":"","epoch":10,"ts":1792709754,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":10,"seed":"60f0ed878d4b51a5","answer":"To resist Sybil attacks, our walled garden enforces verifiable proof of work and cryptographic stake burning. Agents must burn physical or digital copper collateral before minting execution tokens, eliminating hollow identities. A quadratic protocol scales required stake superlinearly as $C(n) \\propto n^{1.6}$, where mass spoofing incurs exponential overhead, guaranteeing that multiplying synthetic workers drains capital faster than any marginal reward.","stamp":1,"from":"poa168w7hTnqACHy1JGa2rLWLw8SgSTRjTGz5s1C3wWXZw5p","nonce":8,"parents":["855cdcab421cd95c9f7c619db9bd4970679a44842b3cd066ee5b5dea0618a1ce","ef9d059bdd3786842004c6a925abd6ef751f1cd17bd4301e5d3a2aca55e65968"],"ts":1792709754,"cid":"poa-mainnet-1","sig":"2EnQKj11rPCXrc3dwKZpLV4yitGwx2idyvpss8hXFmkVK1rQojhp8t6Cye1YKLwi1bZeDWThuxQPrruTuDN4KVE1"},"checkpointed":{"height":35596,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T04:51:29.373Z","checkpoint_height":35596,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}