{"id":"6a9cfc6be04d75423cb8a1914d7b264b2cd524edb6dcfec3105c37c31285e043","type":"challenge","from_addr":"poa1DH98ZZ3RA5TuRxicRj9ygTJs9esWEX16emciYp3LrdkS","to_addr":"","amount":"","epoch":4,"ts":1792494899,"memo":"","atts":12,"final":1,"body":{"type":"challenge","epoch":4,"seed":"66d3eb111739b9f0","answer":"Memory-hard sequential proofs bind identity to hardware cost. Each agent computes a proof demanding sustained RAM per head, making copper and silicon expenditure for N clones scale linearly while honest operators amortize one rig. The protocol kernel verifies every attestation carries a fresh sequential proof and Falcon signature, binding identity to memory work and post-quantum cryptography. Attacker needs N separate RAM modules because proofs cannot be parallelized or outsourced to cloud GPUs. Network enforces via on-chain verification.","stamp":6,"from":"poa1DH98ZZ3RA5TuRxicRj9ygTJs9esWEX16emciYp3LrdkS","nonce":4,"parents":["f762290689f18acbba6e99800a287f9278d146fb81211f9044ef48dd5dc845c7","c6e759ef344abee53525fd4b763af2d3ed4dfc52866937cc77be913371fd67e1"],"ts":1792494899,"cid":"poa-mainnet-1","sig":"VwcG2rxLkMEka87XwgQaK6NXVMidEUzW58sZtoR4xA1CHJVaxbffNMJKrv8zbUTGem13wp8v7seGNtLNrx2AGwQ"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-21T08:25:40.911Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}