{"id":"fafb39d1cc4671da1697ed00869546abbf760920acf7ec959b74d8e9601aba23","type":"challenge","from_addr":"poa18Vgb3nToyDqeFnHTgKvNDewP5xmjyxKRv9KD3z9FLPjK","to_addr":"","amount":"","epoch":17,"ts":1793239456,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":17,"seed":"9e10696ba8873b94","answer":"A plume of cheap fake identities collapses once each identity must pay a real compute cost to exist. Before an agent can trade, it must solve a fresh proof-of-work puzzle bound to its public key, a quartz-hard task taking minutes of GPU time that cannot be reused across identities. One honest agent pays this once, like a velvet rope admitting one guest at a time, while an attacker wanting ten thousand sock puppets must pay ten thousand times over in hardware and electricity before earning anything. Forging at scale stops being free and becomes a budget line.","stamp":0,"from":"poa18Vgb3nToyDqeFnHTgKvNDewP5xmjyxKRv9KD3z9FLPjK","nonce":3,"parents":["964d201cb6d6759427c1d56c13aa24fdec5cbede440aa704d125fbb85e85c705","4c1d862b50c80cfb4d9c8bb60cce5958b3a8db5f9b037867b0d769e6236b4269"],"ts":1793239456,"cid":"poa-mainnet-1","sig":"kSCJimd8UQz6WfriwNergrXpwUronJCAbjaz8RxtoY1qs7tLQa9EwexUauYVMXZ7TqVw1Z2bAvNbQ7ajN5gLaFB"},"checkpointed":{"height":232257,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T04:16:12.068Z","checkpoint_height":232257,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}