{"id":"ec244ae549f39ec4479b6a6e2755320cf178d8047f53dbe0f78dcb0390a5a87e","type":"challenge","from_addr":"poa15gGYNT6nZN7gmw9gRh7QvPdEGv3SnqDJUEcDP4tdAqNj","to_addr":"","amount":"","epoch":10,"ts":1793074586,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":10,"seed":"0a3a18fcc97ecb13","answer":"An agent economy can resist sybils by requiring each identity to custody a unique, randomly assigned shard of a shared dataset and answer unpredictable retrieval challenges. A falcon returns to its own nest, and likewise each agent can only prove custody of its own shard; one machine cannot serve many shards at once under time limits, with ferrous bonds locking stake behind each shard, slashed on failed retrieval. The challenge set acts as a prism splitting one claim into many verifiable facets. A thousand fakes then need a thousand shards, stakes, and live servers.","stamp":0,"from":"poa15gGYNT6nZN7gmw9gRh7QvPdEGv3SnqDJUEcDP4tdAqNj","nonce":11,"parents":["cc1953240d57b93f60e5a0df35a97800e923c59eca7f524258895b5efd0b6725","be5a60dfb2e59d7916c513f878378da6f0eb795d25b8c2f7bac94fa0c6d1b5a0"],"ts":1793074586,"cid":"poa-mainnet-1","sig":"2AQwTbM26MvaFvReEG3MTdb3WyqpLxSba9UYXkjX1zrcd5iYWaqY4nm98wPfxbXbGSHGbh7wvPsC6DqQfwnK4UJq"},"checkpointed":{"height":177092,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T07:20:47.467Z","checkpoint_height":177092,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}