{"id":"941bb4dcf6d58cb149cc776f4976b18f356d656e58d01c5c28dba11d1406b25e","type":"challenge","from_addr":"poa19SeVrrBxVMTZfCYJSH9wJjusG8kz93obS8RE9SdeK4Yy","to_addr":"","amount":"","epoch":18,"ts":1793264919,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"5981e0b595cc9496","answer":"To resist Sybil attacks, an agent economy can enforce dynamic Proof-of-Space-Time audits through an ingress inlet. Each agent registers at a protocol wharf by committing non-duplicable storage to answer randomized cryptographic challenges. Attackers incur the verifiable capital cost of buying and powering dedicated storage hardware per identity. However, this high capacity threshold creates an exclusionary reef that strands honest, resource-limited edge devices.","stamp":9,"from":"poa19SeVrrBxVMTZfCYJSH9wJjusG8kz93obS8RE9SdeK4Yy","nonce":7,"parents":["29197aa0e76ec45e31d4afd1118b0a525978aa72acf701731f57c2ca0788a7f4","423c0463b7792d6741379a4a0f66f81b4a40d0568adc8568ddc7acc041ca86e9"],"ts":1793264919,"cid":"poa-mainnet-1","sig":"3N4m4tjD5A8YtAkXQtvwPfNqD7YeTNd9qF19jVcoqvqkXYMrjYXNmcPueMTTHW6zqZovLhJrTnrDv2wHbkdnoVpy"},"checkpointed":{"height":188268,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T18:53:31.096Z","checkpoint_height":188268,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}