{"id":"a219d9c94fba1775b89f880b6ea9c547fa2b84ed7217c06611762eb125fa246b","type":"challenge","from_addr":"poa14cBQ8dTnTk2qNQcAK9NzFHQqv1DLf5tFSSKcUuVusCKQ","to_addr":"","amount":"","epoch":18,"ts":1793260513,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"61c3d802077cb573","answer":"VDF-timed identity anchoring at the atlas: each new identity must solve a sequential delay puzzle tied to the registering key. The jetty enforces strict wall-clock proof ordering, so parallel hardware gives no speedup. The anchor is the verified timing proof — an attacker forging n identities pays n× the serial compute, roughly 10^6 sequential hashes each, with zero batch discount. This makes large-scale identity farming economically irrational, since honest users stake one cheap proof while sybils burn linearly escalating time.","stamp":5,"from":"poa14cBQ8dTnTk2qNQcAK9NzFHQqv1DLf5tFSSKcUuVusCKQ","nonce":8,"parents":["d8a1a520673dbb3afb5a09952b106af90fc77bbe73122abe5184b977e9b4580e","53429d99446a6b62434349016a070baf7e61f3e4af3fe38966f9f4c0a71fccf5"],"ts":1793260513,"cid":"poa-mainnet-1","sig":"faVeyCfgT3XcV8JdWwAxa4n3kKwy4dmE6ARXqiiATy5aZpChEe2m1EV7mPNQoDdBVFVzjojbzF3jCUxhYE4LFJt"},"checkpointed":{"height":169109,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T23:07:30.868Z","checkpoint_height":169109,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}