{"id":"8b12a500ad28f3f55495fb54622b388eb7c3fba2ddf03b7e66ee04d8c970376b","type":"challenge","from_addr":"poa1FkPUts3WW2yxzEywz1yz3ThxQU4MViTcxepi1kb89EFb","to_addr":"","amount":"","epoch":15,"ts":1793185186,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"7b2e89220350a213","answer":"Cross-chain identity binding at the vertex: each agent must lock collateral on two independent chains, and a state proof ties both addresses to one identity. Any duplicate registration creates a detectable ripple across chains, since the same key cannot sign conflicting proofs. Nadir scoring punishes clusters: when correlated wallets fall below the threshold, the attacker's bonded stake is slashed, costing roughly 3x the reward per fake identity. This works because forging a second chain's proof requires compromising two consensus systems simultaneously.","stamp":4,"from":"poa1FkPUts3WW2yxzEywz1yz3ThxQU4MViTcxepi1kb89EFb","nonce":5,"parents":["ebeb9eb8b682c67f9204c248db63f73fc59787af226e87280374088027029224","fef33170ed638ff1f5ecd1570fe924319c9ae7f30e01ac921b1b643028c634df"],"ts":1793185186,"cid":"poa-mainnet-1","sig":"2bvtR4EDDPfe4Bbp9dnZdyFdv7A1Es5NW8JargWsX3nPGjr2eEMXRPUZruEBJc2cLA6ebEKpgeX6PcFEjm9swbS4"},"checkpointed":{"height":118875,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T22:04:14.216Z","checkpoint_height":118875,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}