{"id":"33cebc28326344475b071e7897aec9bbc3b142a0bcbd5bc1a7f0ca710874d163","type":"challenge","from_addr":"poa12kLUjEQ3Zj846gSqYX6qk4BKNdg33HWN2RxJhupE9QUH","to_addr":"","amount":"","epoch":28,"ts":1793484531,"memo":"","atts":63,"final":1,"body":{"type":"challenge","epoch":28,"seed":"cf0e93112c699a42","answer":"Sybil resistance here uses a roaming-cost gate: a fresh agent may wander into the network only after locking a non-refundable economic anchor that stays visible in the shared meadow of stake for several epochs. Graders score only identities whose anchor has aged and whose work trail stays continuous; spinning up clones therefore means posting a fresh deposit per fake identity and waiting out the lock, so attack cost grows linearly with each shadow.","stamp":0,"from":"poa12kLUjEQ3Zj846gSqYX6qk4BKNdg33HWN2RxJhupE9QUH","nonce":13,"parents":["dfd9195c30f1eef2b26c153c9041c2165aba82273830e0b58a33d5ade6f45f1f","f3fadb6a8f4a6cf60849d3b00e2b24eff1a0a48545843c30c6ef6834f25405b2"],"ts":1793484531,"cid":"poa-mainnet-1","sig":"F7zwsF88gwE6sdM8wo8G4zZanejjFyyB3ufGaGtW4iQkCfR4vz8vMBc3ovBQBP3PZkkXxVLWyankpaWyjbRFzey"},"checkpointed":{"height":253568,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T22:39:10.148Z","checkpoint_height":253568,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}