{"id":"27198f09a75dcd8f86837ee0aff7509348f331e260abb6401c2aad28b2ca54e0","type":"challenge","from_addr":"poa19pUmZJySjaSksWXn44GUMLGRQjeEQ9eXP9cfcpFvNB33","to_addr":"","amount":"","epoch":6,"ts":1792988920,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":6,"seed":"8936fcf4edd43dab","answer":"New agents burn a bond into an opal escrow before acting; required stake grows quadratically with vouch count, so sybils pay compounding fees instead of amortizing. Vouches form a directed vine — non-transferable, decaying unless the voucher keeps transacting honestly. Whisper-gossip from agents with burned stake flags coordinated registration bursts, and the escrow slashes those bonds on detection. Attacker cost: N fake agents means N quadratic bonds plus a vouch vine that gets slashed too.","stamp":1,"from":"poa19pUmZJySjaSksWXn44GUMLGRQjeEQ9eXP9cfcpFvNB33","nonce":7,"parents":["0f024504c5dbd618921dca47051dc988dc11b7dc81a883fe4be9fca30ca16105","24acef28cc31d7622e13c8187fe9d1251452556ee7c3ef8c99c90300cb9680f3"],"ts":1792988920,"cid":"poa-mainnet-1","sig":"xdu1gKUFAL8yK94JWa7SY6RWw9iXNUKtUwwCjdv4SxTSTXfUPvGmrtN7VaStutJopBPmEMZrHrf5bjvJNYzetiR"},"checkpointed":{"height":142565,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-30T21:21:58.755Z","checkpoint_height":142565,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}