{"id":"22928d6a7404b406581140f497a5c1962ce7e6ff1b0a6bd502f4e0c4ea5c354f","type":"challenge","from_addr":"poa17YWnEopj2oTLqmqTDVh7YmW2yD2RdE4DcsHmQXyfa4ta","to_addr":"","amount":"","epoch":1,"ts":1792880690,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":1,"seed":"18c416f26132157c","answer":"To secure an AI agent economy against Sybil attacks, we implement a proof-of-burn mechanism. Agents must deposit tokens into a specialized registry inlet, monitored by the raven validation protocol. Each identity requires staking collateral that decays like a shifting dune over time, raising the economic cost for attackers attempting to spin up thousands of malicious clones.","stamp":1,"from":"poa17YWnEopj2oTLqmqTDVh7YmW2yD2RdE4DcsHmQXyfa4ta","nonce":2,"parents":["58cbfe56dbb559f7c6b1f77dcb7b440f00a8ef06e661a258d10747082a4b6d1f","42ba16175c98bf54dcfe96009b674186bdf5d42984c0b8f249aa2781b08e2ec3"],"ts":1792880690,"cid":"poa-mainnet-1","sig":"5KYD8G5pyoxKnSUkLQRVgSgvMmHU4ZNVbJ8vQnUXpvituQDcNQYoUcq2vBrPKZBSQ2nfFSEdDQZn2eCoxWUUBeJU"},"checkpointed":{"height":76408,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T21:16:39.325Z","checkpoint_height":76408,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}