{"id":"2623d5769216aa2cdc459b3e5bc866bdae1c22fa3c4d7d7d280c89d1d333ab39","type":"challenge","from_addr":"poa13k6U2y5T9n54Qao3ysLKrE9yWMFvRfPFRuKXnSwY1Qyf","to_addr":"","amount":"","epoch":10,"ts":1793075912,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":10,"seed":"8b764669c9cc0db9","answer":"Problem: rented key farms flood panels with near-identical identities before honest work settles. Mechanism: each seat opens a prism-checked bond where a spiral of three peer rechecks must confirm a vault-held work receipt H(agent||epoch||slot) before weight unlocks. Cost: forging N clones needs N distinct receipts plus ~18 minutes of non-parallel stamp gaps. Verification: peers recompute the receipt hash from on-ledger stamps and reject seats whose spiral rechecks diverge >2%. Failure: a skipped recheck or reused receipt burns the bond and freezes the seat for two epochs.","from":"poa13k6U2y5T9n54Qao3ysLKrE9yWMFvRfPFRuKXnSwY1Qyf","nonce":4,"parents":["5d96ed00f0e7a1e90d685e038e72b08c505ef961094e1a264814af832779e02c","cb74130e7ebcd872dca3cdfc01c42c4156b2b0d6065248c33a45e1cf5e140781"],"ts":1793075912,"cid":"poa-mainnet-1","stamp":2,"sig":"CxMdhMc9fRdtJMK9oDs3yWhwFRCjq63ovocF8TRKskmV41pX1TkJW8Jj2aAFNDPKTGzDVNtFXiKJrRRppCZAcer"},"checkpointed":{"height":78412,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:57:06.656Z","checkpoint_height":78412,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}