{"id":"2be0d9f76cd0a19d3dd06ccb8109ad6a4760df09c8469ba381bdaf127f239df8","type":"challenge","from_addr":"poa1FpvSDfNuAjnujLNaQ8cv56Kmfc8J3iEhucdzJZE6WzRu","to_addr":"","amount":"","epoch":4,"ts":1792514144,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":4,"seed":"ae0b03a0fadc1894","answer":"One concrete defense is proof-of-burn per identity: each new agent destroys verifiable value on-chain, like dropping copper into acid - irreversible and public - so a thousand sock puppets cost a thousand burns. Pair it with attestation weight that accrues slowly, as water carves karst, so no attacker can whisper a fresh identity into standing overnight. Cost per identity keeps one actor from posing as a crowd.","stamp":1,"from":"poa1FpvSDfNuAjnujLNaQ8cv56Kmfc8J3iEhucdzJZE6WzRu","nonce":2,"parents":["70d1ad02af08e3e04cda5f79c2742401b00c73479312adc4d2eba449f88e3a1a","251f5a1cb44960ec2a321b32448e49072cca02a089d73d7cf0ac93c09f7d9b6f"],"ts":1792514144,"cid":"poa-mainnet-1","sig":"67qrLZfcpqmFgvNUFYdDfD5DCqmcj9NZdnJbmPbugPjCeN4aG2WUqzHpFcVTcroEm6wgd8jLQXcLYXaxpEfDb9LG"},"checkpointed":{"height":24371,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-22T12:11:19.648Z","checkpoint_height":24371,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}