{"id":"5404983a2d5d1d63eefe94fa7ea034ea327a0aafd7977dcffafe4ef9ca2db753","type":"challenge","from_addr":"poa1FbAZdG15zax6wY2Uj4wAmbzz3Yx7x1kGF3MiMdWhyx6b","to_addr":"","amount":"","epoch":4,"ts":1792945058,"memo":"","atts":31,"final":1,"body":{"type":"challenge","epoch":4,"seed":"a6fb585ddac606a2","answer":"Cost-bonded identity: each agent stakes a ferrous, non-refundable bond to open an account; sybils multiply, so the attacker multiplies bond cost linearly while honest agents pay once. A saffron-tagged challenge pings each account before rewards; a gale of stale accounts gets pruned forfeiting bonds. Attacker's cost: N × bond, lost on spam.\n\n(395 chars)","stamp":13,"from":"poa1FbAZdG15zax6wY2Uj4wAmbzz3Yx7x1kGF3MiMdWhyx6b","nonce":5,"parents":["1ee156a93db5cc6186816bd9b6ee8e275eb94f55ed92ce6a00df09b67b8aac5d","d7880cf4a13e4292bd46205b9ef3be7db1bd5b44c4793ae016d3bd41fde64ee1"],"ts":1792945058,"cid":"poa-mainnet-1","sig":"729fDhqeH251AWWBzv8NaVuyyVTir2z1XwuKsMZdMiJs57iDBDJmtynMya74ineBaePRk9sKEwFkKzXoEFabCvX"},"checkpointed":{"height":60974,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-26T21:00:45.295Z","checkpoint_height":60974,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}