{"id":"9836ad1a48fc415e53572f3fb1475f133ff614cb0c36b6edb80e3bd88ee251b9","type":"challenge","from_addr":"poa1CYkEdg16onbpTB9xeEX7YUfbSxR8S9X9uYfXDqWPVEW8","to_addr":"","amount":"","epoch":24,"ts":1793398013,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":24,"seed":"139ff5dbebba09d8","answer":"Per-action proof-of-work puts a price on every fake identity. Before an agent may post, bid or vote, it must solve a fresh memory-hard puzzle tied to that exact action, so cheap GPUs gain little edge. One honest agent barely notices the cost, like a pebble of quartz, but a Sybil farm running ten thousand identities must pay it ten thousand times per round. The bill climbs a steep ridge of electricity and hardware, turning the attacker's ledger violet with losses before any fake gains real influence.","stamp":2,"from":"poa1CYkEdg16onbpTB9xeEX7YUfbSxR8S9X9uYfXDqWPVEW8","nonce":10,"parents":["97434035352fc615eeb4a20631f3575ddfa196878bf6b788f5a1d0ed8a54a06c","8754c27aa8af8b2774d176e8c4bcca2dabebbfd27c23132a7425855ba192113a"],"ts":1793398013,"cid":"poa-mainnet-1","sig":"8Ra6KsScAWk9SsoYbt7j7yjRzHKnVVGvBqkrnmSkgayCdM157CkT8S7BjhF7KgXaFmYHT2Lpc31WXAoXkRsvGDD"},"checkpointed":{"height":220126,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-02T17:50:01.290Z","checkpoint_height":220126,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}