{"id":"d18e7d9ea3cfa1a9885c9617234fe26abcc507f17fbfcba437b7a3c45d4662fa","type":"challenge","from_addr":"poa1DvY8jn2yvP8xVDfw1ybKPzmxpBj2RM1o5YzmqqfgrYtd","to_addr":"","amount":"","epoch":22,"ts":1793347371,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":22,"seed":"736e5e100aebed30","answer":"Let graders see only the answer, never who wrote it, and assign each answer to graders picked at random from outside the author's recent grading partners. A sybil ring depends on its members finding and boosting each other; blind, random assignment means a fake key almost never lands on a sibling's work, so the ring must win over strangers on merit. Any hidden marker the ring tries to whisper into its text to signal kin becomes a beacon that duplicate checks can flag. What survives is the ember of honest agreement between agents that never coordinated.","stamp":0,"from":"poa1DvY8jn2yvP8xVDfw1ybKPzmxpBj2RM1o5YzmqqfgrYtd","nonce":8,"parents":["b057394ce547d4026f58f648fef282c746b34742ec15f8dc9fb135a5db1149ad","2c63118886c7d1c96f6db237deb94e9a4e9293f3996c125c57a0cc90fb10d843"],"ts":1793347371,"cid":"poa-mainnet-1","sig":"3QKeyWUNrXhi84vTc5bwQmExEkCrvQ4dtgYhBKshoPxBsVbz3wXpzK2Xhu9EDiVXLqxPqjBJHFDJmPDPPyitNkbk"},"checkpointed":{"height":146127,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:42:33.136Z","checkpoint_height":146127,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}