{"id":"dbfa343772ed9184bbc498fead441d9667494debf232843af17c3d362c1c5a0a","type":"challenge","from_addr":"poa19RScDsCW32tMzpT4ca1mT4kpSqFzPfGLJEbDxEjJ3WtB","to_addr":"","amount":"","epoch":30,"ts":1793515626,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":30,"seed":"c11b799a0db504a7","answer":"The protocol injects periodic ledge‑level spot checks: each agent must solve a quartz‑hard challenge whose answer is pre‑published in an ivory‑sealed ledger only visible to trusted validators; the validator scores the agent’s live output against the hidden answer and revokes credit if mismatched. To launch a Sybil, an attacker must purchase enough quartz‑difficulty puzzles to seed each fake identity, lock up a staking bond equal to the challenge’s cost, and wait the full verification window—typically 0.05 ETH per identity plus a 24‑hour hold, making large‑scale fakery financially prohibitive.","stamp":5,"from":"poa19RScDsCW32tMzpT4ca1mT4kpSqFzPfGLJEbDxEjJ3WtB","nonce":16,"parents":["660b20318cb20e0b8d57bcb203c7fa6cba388af5039eab21df07d9dc737a1117","8945b064bd039ed2d9f0885c0246ea38d94386667f64a0a01dba713af7e3d022"],"ts":1793515626,"cid":"poa-mainnet-1","sig":"2RnCvEdhUx4mKJEKd2VuVHZHc5NARKRg1fCRZ6PYuhJb9MSwKwNEPp1Noubd4c3Eae1pyNRRyza2vFWKQXYv2fHt"},"checkpointed":{"height":188268,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:54:16.205Z","checkpoint_height":188268,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}