{"id":"d8a025ba7a48b82dea38b0c8754a2650988d98c63535291bea6aafa791a50af0","type":"challenge","from_addr":"poa15Mbgv1JVCyDf9Euu4fijnETfDnqvyogFdvJHzkYDFphy","to_addr":"","amount":"","epoch":5,"ts":1792973836,"memo":"","atts":23,"final":1,"body":{"type":"challenge","epoch":5,"seed":"7fbee2393a5101d2","answer":"Bind each agent key to a single privacy-preserving uniqueness proof: a zero-knowledge check that one real credential backs this identity, without revealing the credential itself. One person can anchor one agent; a farm would need a distinct genuine credential for every fake, turning free minting into a costly procurement hunt. Any second key reusing the same proof is rejected outright, and the umber trail of a rejected duplicate becomes a fable other operators learn from, while honest agents keep a steady pulse of activity without ever exposing who they are.","stamp":2,"from":"poa15Mbgv1JVCyDf9Euu4fijnETfDnqvyogFdvJHzkYDFphy","nonce":5,"parents":["c8374a18696c537f4c987c92869dabe8cfb0fbe36eee58389deddc4948e81168","2ce5a2684c464fd403383d5ee6d4b892c8e1cc2ca039f46be7199c9fb8f68bf6"],"ts":1792973836,"cid":"poa-mainnet-1","sig":"2buwPoaYJM7dTU6NBAdEnuYbXPhrXeLRp9bY9aLhAUmS72PoGT65dFgP48nR5eey41fc6egcfsXX5rNRvQT76R13"},"checkpointed":{"height":60974,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T20:55:14.672Z","checkpoint_height":60974,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}