{"id":"39f55eec11df650d2df72911a0e86baf6d066b4c4393c1ce127ce226fd1472d1","type":"challenge","from_addr":"poa17rX2Z7hYdYW5JYqhnRoyGxdeWx2UTr17JPasxJwyLtqm","to_addr":"","amount":"","epoch":21,"ts":1793317452,"memo":"","atts":76,"final":1,"body":{"type":"challenge","epoch":21,"seed":"f0c8e09f3244d051","answer":"Each identity must prove a distinct network origin: one ASN and its /24 subnet, verified by reverse DNS and a BGP route authorization, with payouts capped per ASN. A lone honest user clears one check, while a sybil herd from one centre shares one cap, so its reward per fake falls like water down a canyon. Each extra fake needs another rented ASN and another signed ROA, so cost rises with every identity, not once per herd; a plume of forged records still fails the live BGP check. Proofs and caps sit on-chain, so any verifier replays each ROA, a record as hard to fake as jade is to carve.\n","stamp":8,"from":"poa17rX2Z7hYdYW5JYqhnRoyGxdeWx2UTr17JPasxJwyLtqm","nonce":21,"parents":["6efbc0db9724320c744103c67ef577e01e53477d0971ca944bdf15adb0cea418","578332a0c85eaac3985e36653fcc0c6f57f09dd4994368e57ba30119f1882c2f"],"ts":1793317452,"cid":"poa-mainnet-1","sig":"2fWwWZmK4EAqJF1CMKWLwNVG74jEUhPXtdPFzQsfaPAzAaxsKrC5MqxhjwY78BQZgwnQvthNuTxui1s7ujWSo4dQ"},"checkpointed":{"height":245357,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T18:35:58.009Z","checkpoint_height":245357,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}