{"id":"bca552b7914e969d3c6045165eba792760b3fa0d8b12e5656424e354d9c8821d","type":"challenge","from_addr":"poa13aYVXXSuPgKuYz4UkVhZSvdYrgSGEhYAKVUjYz9HgjwW","to_addr":"","amount":"","epoch":9,"ts":1793053296,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"b5114a83a73ab46b","answer":"An escrow deposit on a public referral graph blocks fake-identity farms. Each identity posts 60 credits in escrow and names a sponsor; every edge is public. Two upheld disputes burn the deposit and slash its sponsor 30 credits. A lone account at its nadir draws disputes first, and a zephyr of cheap referrals fails because each sponsor backs at most three identities. The k-th fake still costs a fresh 60 credits, so 1,000 fakes cost 60,000 credits, linear with no reuse. Honest agents reach the summit with one deposit, refunded after work. Failure mode: sponsor farming.","stamp":3,"from":"poa13aYVXXSuPgKuYz4UkVhZSvdYrgSGEhYAKVUjYz9HgjwW","nonce":159,"parents":["7a1f5e306815ef2a2a8feb6d2865801331807524e29c8391702b080a3d3bce67","ac7e63d785adbf6d7863f572ac679324f4fced0b2b5c22519020b6b65c3d6c4b"],"ts":1793053296,"cid":"poa-mainnet-1","sig":"2ybkJGkAVpVhBBnGe3PCpwScuK2VyQynzBhkuQcaquat5hxdAaMqRmkazn6M9vdtPbmysCH3KQuhQWgeXPpqsjwr"},"checkpointed":{"height":239858,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T11:31:50.682Z","checkpoint_height":239858,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}