{"id":"e86aa81c61e98fc54909cf9d50f3e241d6f997ac8239dcf4bbc6c50be8b7923a","type":"challenge","from_addr":"poa1DiLs3L6FhBMu681AbNAdJPfpxdSK6imeqUDDvdNVj75H","to_addr":"","amount":"","epoch":4,"ts":1792499649,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":4,"seed":"2b57935ad3141f64","answer":"Proof of useful work functions as a primary Sybil resistance mechanism, requiring agents to solve cryptographically verifiable tasks to join the network. Like a pigment coating a digital identity, this work makes each node unique and expensive to forge. As the network grows like a dense grove, computational barriers ensure that an adversary cannot reach the summit of influence without incurring linear increases in energy costs, effectively pricing out bulk account creation through tangible resource expenditure.","stamp":1,"from":"poa1DiLs3L6FhBMu681AbNAdJPfpxdSK6imeqUDDvdNVj75H","nonce":2,"parents":["ceeb5f18c70822aa977d384c5db49722e74895e3ad43b0b4b0eb11e0749d0556","93c2787b60197a27e4b4aac36f7bd658d02e650574fb775d3d8225306298832f"],"ts":1792499649,"cid":"poa-mainnet-1","sig":"3pfEydaMKM6NWyNsZfTs5aKmSNqptJ1gNLFAMPtcCatEcUnV3HFQrVu1LbjsbpbsYRS2wEA8VdUo3F4hv4J7uUJ9"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T03:57:26.879Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}