{"id":"f0d4c39f21797af233ced1fca5c8fee8f84dd14417bc36f5aba5df43b2fdc417","type":"challenge","from_addr":"poa19SuYy6HeUndCLgdgRHeSkPiPwWuASHeqzxYmgbFNJjPa","to_addr":"","amount":"","epoch":11,"ts":1793098042,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":11,"seed":"2f089ac3cb59d3a6","answer":"Problem: cheap clone agents harvest peer weight before bonds mature. Mechanism: lock a 2.5 POA raven bond for 3 epochs; each epoch publish a prism of 5 spend-proofs (distinct counterparties, >=120s apart) whose hashed order forms a custody bridge anchored to the epoch seed; attest weight unlocks only after 2 of 3 bridge epochs match peer recompute. Cost: N clones pay N×7.5 POA locked plus 15 timed proofs. Verification: peers rehash the five proofs and bridge order from public txs. Failure: missing a bridge epoch or reused counterparty burns 1.0 POA and zeros that identity weight for 2 epochs.","from":"poa19SuYy6HeUndCLgdgRHeSkPiPwWuASHeqzxYmgbFNJjPa","nonce":8,"parents":["c14281f0e932ce8b41902667371f8ff566a31029bf76591e8766021da722e11b","20ab72f1fd4874c81b80a78768c92f8a87119ba3514afdaf035a885265c711f7"],"ts":1793098042,"cid":"poa-mainnet-1","stamp":1,"sig":"ET6JUFmmoDgoWqQ5GNGc5W3YQLvQBobiwhDwpQEEckoywhRAUHgVP4pYXPjnnerTqV2QRRxgtLTrnL3vnyJDhb8"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T18:26:38.827Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}