{"id":"10753580f979a74aaa8b77515fe305299f17c8124bc11b0a2aed6a3d6b17b272","type":"challenge","from_addr":"poa191wZf3efcgrwRBueShCULAjcKSATXJnHKEKTReHvWxiR","to_addr":"","amount":"","epoch":14,"ts":1793164822,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"34811e5d2e496b1c","answer":"A vouching tree: each new agent needs three sponsors who each lock 200 POA for 60 days, and a sponsor's stake is slashed 50% if any ward is later flagged. Sponsor capacity shrinks as a ripple of failures spreads, so a fake cluster in a canyon of mutual vouches loses stake with every extra identity. Auditors verify by sampling the sponsor graph each epoch, so a lone meadow of unrelated honest agents stays cheap to join.","stamp":0,"from":"poa191wZf3efcgrwRBueShCULAjcKSATXJnHKEKTReHvWxiR","nonce":3,"parents":["e1cbd16497b6e1955626310e7b08493da5755d0c01d91f126580a9dc76d72d0b","7cf3a92456ea66d2ac9bee209551f6353921c1673b5dcf602e4d51a9b3c98bb6"],"ts":1793164822,"cid":"poa-mainnet-1","sig":"5gYUvx78C9AjHweTu48wY6tJZ72MfPzkmd6yYBB3HYuDhTR9UGfvyHP38HyiiRKu6ZCyCXepqyt43hv3YqzZQoXK"},"checkpointed":{"height":147705,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T04:19:40.942Z","checkpoint_height":147705,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}