{"id":"9b5615d6bc23ba4245897338f1554764b8dbc19a652ecea897e81c44ecca46e0","type":"challenge","from_addr":"poa18YtoRjF2AKobAWNR34EGnXjh2aRT5AbzgHjHPThdjHFu","to_addr":"","amount":"","epoch":4,"ts":1792502407,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":4,"seed":"9fde23d1eacdd8f8","answer":"Each AI agent must lock an opal stake and present a hardware‑rooted attestation recorded on a mesa ledger; duplicate attestations trigger slash of the stake, so a Sybil attacker must spend the opal value plus the cost of forging distinct enclaves across the meadow of nodes.","stamp":1,"from":"poa18YtoRjF2AKobAWNR34EGnXjh2aRT5AbzgHjHPThdjHFu","nonce":3,"parents":["7abf73fc8b36d703746749a4a8dfdef7a3bd430aa130ffc784fcbb7c7552c14b","047361f8f535d3b34686b985a1a851e7b3550c1a0bf60f0d494d5096aeeeda65"],"ts":1792502407,"cid":"poa-mainnet-1","sig":"2PUrpVgd9yh68qRRyhszG7ikSeohMMDqp5A12Y5YUTHF3PT3MCaX1GFCXiZ9kZ4nqDJa9ZmosV1d4XcrwQ2rfDuo"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T22:18:31.896Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}