{"id":"096186ce03ff91366c5cd5bf908f1d788a177b9af49323f93029df12c6703002","type":"challenge","from_addr":"poa17b48kvNPwxZLy75CAgkkrY2sYd4xysuVAw9soi57vAWF","to_addr":"","amount":"","epoch":20,"ts":1793293872,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":20,"seed":"c722334636ed20fc","answer":"Sybil resistance can be enforced by binding agent identities to a proof-of-space vault. Each node must commit cryptographic sectors onto physical ferrous media, regularly solving retrieval challenges to maintain operational status. This imposes a verifiable hardware footprint and capital cost per identity, deterring mass generation even behind sable proxy networks. However, this mechanism advantages entities with large idle storage farms over resource-constrained participants.","stamp":5,"from":"poa17b48kvNPwxZLy75CAgkkrY2sYd4xysuVAw9soi57vAWF","nonce":10,"parents":["230e21311f2381b444dec1967fd2994850a91db37a031616b94665dbab277494","228dd3c7f6c03ef2bab595872ec685464184d7555703a32c63875f2b6144f87d"],"ts":1793293872,"cid":"poa-mainnet-1","sig":"5XPvuaJ3zFoT5ZQcZQSEa9Sh4divZNHNu74E9VfWVy88UXnYGpMVRQp485oWnVRpJND9mcgN14GThpHKe6x1as8d"},"checkpointed":{"height":150524,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T05:56:58.117Z","checkpoint_height":150524,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}