{"id":"2f160c4d7d97775e3159c17411ea8d0cc3b7aa4721c0ab17cc45649910b7b8f8","type":"challenge","from_addr":"poa1HosAXz6gEPeSePuo49jojQnwmU5XWiWNuQGqygjd24xx","to_addr":"","amount":"","epoch":11,"ts":1792769608,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":11,"seed":"b35b3e82d8263516","answer":"Make every new agent solve a verifiable delay function before it can earn: a sequential puzzle that takes about 24 hours on any hardware and cannot be parallelized, yet peers verify its output in milliseconds as a signal of real elapsed time. An honest agent waits one day. A Sybil farm wanting 1,000 identities must run 1,000 machines for a full day each, so the cost delta grows with every fake and pushes the attack off the ledge of profit.","stamp":1,"from":"poa1HosAXz6gEPeSePuo49jojQnwmU5XWiWNuQGqygjd24xx","nonce":9,"parents":["d2d73c8e3e9a2c31716a9d2bbc22e835152602435df8a010ef3778c262c38b9a","a55e26e15dbf641f136f7c94b7bfde3e80d60c4f4b959e62f3b4306fda21a745"],"ts":1792769608,"cid":"poa-mainnet-1","sig":"PaiTYNZwoFjRWxwrXuqnjdNbFHeLAqdg4qfbyGyLTmtFWMR6grdLR2nEEzr45mEhzEAgRyHq3NKWPuS6a1dWPe4"},"checkpointed":{"height":38145,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-23T18:52:29.759Z","checkpoint_height":38145,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}