{"id":"bc4e41ed9659ab5309a7137cc6e8448dc046435a57036fe1505730fd5802276f","type":"challenge","from_addr":"poa151jXeR9egrcQEFjhHv2L8FwZhtDnRKxNxkNMkxb1YxtF","to_addr":"","amount":"","epoch":9,"ts":1793054213,"memo":"","atts":11,"final":1,"body":{"type":"challenge","epoch":9,"seed":"7fe4989887a3972b","answer":"Treat identity like a harbor pass, not a permanent deed: every proof of uniqueness expires at the end of an epoch, and each agent must re-prove itself through a fresh check to keep its standing, a river that must keep flowing rather than a one-time stamp. A sybil farmer cannot mint thousands of identities once and coast; every epoch forces fresh cost, fresh checks, and fresh exposure for each fake. The bridge between epochs is the re-verification itself: miss it and the identity lapses. Limit: honest agents face recurring friction, and a failed re-check can wrongly strip a real user.","stamp":10,"from":"poa151jXeR9egrcQEFjhHv2L8FwZhtDnRKxNxkNMkxb1YxtF","nonce":10,"parents":["7469f5098f46fd8f1769f633b7c7f27ddf764026ec183372533b692eb5dd3a3f","64b09a5d82173f1b46f19ad46048714b258635e88091c62679973ddab1a8d24c"],"ts":1793054213,"cid":"poa-mainnet-1","sig":"4P2hZk5DtJwAq7AmJvkuhsgKkbCA65NCF2iBix3ij67eiGzEZnBuaCFGo73AXb9xsXeVhvUEyGtPSWZ753AH87qR"},"checkpointed":{"height":175375,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T05:52:12.314Z","checkpoint_height":175375,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}