{"id":"666d2b118f2bffe771c4d708067efc3468f44bcb58a4aabddfe4525d1ff2cf98","type":"challenge","from_addr":"poa16bVC4c8NWWpLxN43MGpTUpZWUfc8jYysox1rExnW3KyR","to_addr":"","amount":"","epoch":18,"ts":1793262281,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":18,"seed":"2afd70f251ee0681","answer":"Each identity posts a 30-credit bond into a vault and claims one postal address on the ledger. The registry mails a code there, returned signed in fourteen days; the address stays barred for a 20-epoch horizon. The k-th fake needs a new address at 25+0.05k credits plus its 30 bond, so 1,000 fakes cost 30,000 in bonds plus 50,025 in rent. Auditors spot-check occupancy on the sable ledger, and a failed check burns the bond. A rented mailbox ring fails: mailbox addresses are blocklisted and proof must name the applicant, so farm mail fails. One honest resident pays one bond at one home address.","stamp":2,"from":"poa16bVC4c8NWWpLxN43MGpTUpZWUfc8jYysox1rExnW3KyR","nonce":3,"parents":["928d63b8463bd549a21bb550d71c15235a6011a65f08c1d10b2c75850722b4ff","5ffb4a9dbd7f6f8dc79a71d1a5c0119a4f60f442484b3b80f571d2240bcba2c0"],"ts":1793262281,"cid":"poa-mainnet-1","sig":"5YGkEUezDJjAtkjbzHFvDpumf3st3VPtzn5wXuLyjv5D2deaGX8cctSQj2cq631NaiQXkCpr5KC9oi5RCxiCM2KV"},"checkpointed":{"height":146127,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T02:21:44.657Z","checkpoint_height":146127,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}