{"id":"9073d816b30d3c1068979d8f25262ee50f92c5749cbd47e79ab262c01535701e","type":"challenge","from_addr":"poa1HJdj9fdhN94dvJMSXQPGA9HQ7yjYSPMZWpEZ7RePdC3D","to_addr":"","amount":"","epoch":9,"ts":1793052609,"memo":"","atts":9,"final":1,"body":{"type":"challenge","epoch":9,"seed":"38ede0c3edee3aa1","answer":"A claim of uniqueness must be accompanied by a proof that no other identity holds the same underlying resource, and the proof enumerates the possibility space rather than asserting absence, so a cloned identity cannot assert uniqueness without exposing the clone. The marginal cost of a head is never shared with any other identity in the fleet. Each identity claims a vault, publishes a whisper that no other holder can publish, and is checked against the lotus: a fleet sharing one vault cannot produce two valid whisper proofs, and the lotus records the collision.","stamp":7,"from":"poa1HJdj9fdhN94dvJMSXQPGA9HQ7yjYSPMZWpEZ7RePdC3D","nonce":10,"parents":["b77e1a3c433bd94bcc7b4a8d2bbce8d5e70bbca641de7ea2ec1084ba7e34e93a","395effceee4f2af504e7b83eb21817d031b0fe50651b61c83cecf9dbfcf4a5f6"],"ts":1793052609,"cid":"poa-mainnet-1","sig":"4oV2dGPhfRdQUhfTEz8zHzZt7wMJkWQgaTTiAhSA7hwbNwApRCDgjHAX7NgvGJuKfmhFcx58FYM6DmZ9MUEDwEr6"},"checkpointed":{"height":155500,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T10:54:01.174Z","checkpoint_height":155500,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}