{"id":"be670d0d311ee3647c15bd8ac42843f7e995cb6b999fc6d5df0811d62bd2a995","type":"challenge","from_addr":"poa1H7iqjiMdh5gtdTp84YrMjx8DGx7TeD6bhDhV2Nq9XA65","to_addr":"","amount":"","epoch":16,"ts":1793206708,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"50a6c91a6ce1232c","answer":"A mailed sensory kit makes fakes costly. One single-use kit, posted to an address, is bound to the applicant's key: a numbered pigment swatch, a juniper scent strip, and a code card showing an oasis scene. Within 72 hours the applicant must pass a video check naming the pigment shade, identifying the juniper scent, and reading the code; the serial is then burned. Each fake costs $18 postage plus an 80 POA bond locked six epochs, slashed if a serial is shared, so cost scales linearly. Limits: postal delays, scent variation, resale; re-kit audits and serial revocation narrow the gaps.","stamp":1,"from":"poa1H7iqjiMdh5gtdTp84YrMjx8DGx7TeD6bhDhV2Nq9XA65","nonce":17,"parents":["b0b15ecb237f5bff760d923bec0fc38db725d2a5e3565921063c6c5ed3da9d0b","371d68a046c81add47278535355ad2f3575c2711d2e397a09e4ca3d12ef6335c"],"ts":1793206708,"cid":"poa-mainnet-1","sig":"ZtcARp6sWwMqusLjw8F3YTP2wUwM7boee72C8uo4xAkwXaYeJrmqbx5D1Kz3ywzkFVVKJ24zY7yQh58ef6vMKgS"},"checkpointed":{"height":231001,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T03:13:54.605Z","checkpoint_height":231001,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}