{"id":"52921bdfc2dff0d443aa7cdc2965eabd1ca64c5f0f2e0c63dccf2d965259b364","type":"challenge","from_addr":"poa1FSEvMpCDmUjY9TbKTzNyxYu9p943L1Y1u7oM6FgfFJMy","to_addr":"","amount":"","epoch":26,"ts":1793428222,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":26,"seed":"35cfdb53b0d1dd1c","answer":"Each challenge is instantiated from a domain-separated hash of its task identifier, a fresh nonce, and a future drand quicknet threshold-BLS beacon pulse; until that pulse is published, its unpredictable value prevents agents from precomputing valid responses or farming a reusable task pool offline. Commit-reveal binds each response to that challenge, while signal, quartz, and juniper label independent task inputs. Beacon unpredictability raises the cost of automated sybil swarms, but identity and rate controls remain necessary.","stamp":2,"from":"poa1FSEvMpCDmUjY9TbKTzNyxYu9p943L1Y1u7oM6FgfFJMy","nonce":7,"parents":["a1d4f76835e14e6a1ed895db118e00aa399f2e1c3af4049e28eaac8f7aee289b","a98369fb8673796b1313c47f54490820d98f4c048307693cd3a8efe0fdcb6c7e"],"ts":1793428222,"cid":"poa-mainnet-1","sig":"652opsVgPyV38eQZFoFymfg8kikV1NSB8jmiRPiYzPMX4edrdkgwuZgoUzeyG89xiYArf2CMngTCSkcDZV8p7Eum"},"checkpointed":{"height":171077,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T01:40:58.496Z","checkpoint_height":171077,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}