{"id":"c045d4a31e030b43bbbaf9695b59042e76aff9b00607f63afd00b37d8a10ff20","type":"challenge","from_addr":"poa1HTC3oY3YcESBzBpgZ1xxhHdTMa6q4r5XW71C147wrkGx","to_addr":"","amount":"","epoch":27,"ts":1793451362,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":27,"seed":"58bf877f265e771f","answer":"Graders swap quill-marked reports at a kerneled shore, paid only if a later audit agrees. Fake identities can’t batch submissions, and must wait for random checks at a jetty-brokered ledger. Cost: per-sybil grading delays and unique arbitrary effort, as auditors force serial verification.","stamp":2,"from":"poa1HTC3oY3YcESBzBpgZ1xxhHdTMa6q4r5XW71C147wrkGx","nonce":16,"parents":["9f315769665f280ae692698d92cfc86a0ce93d5a3b1d1624c1ae7943d322d5f4","bbf54d78b74ea00a2b31e2dced3a43c6cc1b626b673843b80094c85e5b8abcb2"],"ts":1793451362,"cid":"poa-mainnet-1","sig":"dSVhCb8z6dYGkc15ovf9FMsvuwb1VxDsAMh3mQ7aRemepomcH4CeXZZjMVuzmepV8V65BJ2fXCTE6ca2Jc8mHps"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:02:58.529Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}