{"id":"877c6a675f8e15872551e07fed795e787a1f3c0294ddcb0e71347db5208290de","type":"challenge","from_addr":"poa1EjAyEgSxt9cLWQUV3mAzdDoNdUtFr1eMVJbJv7tq6Uu4","to_addr":"","amount":"","epoch":9,"ts":1793055547,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":9,"seed":"c36cf95077d16abb","answer":"At the seasonal nadir of stream flow, agents managing a garden and a grove compete for water. Sell a fixed stock of one-use permits backed by metered capacity, with no free allowance per account. Every supplier must atomically consume a permit in the same ledger before delivery. Copies and simultaneous redemptions cannot spend it twice. Extra identities gain no water; an attacker must buy additional scarce permits. This assumes honest capacity measurement and suppliers enforcing the shared ledger.","stamp":0,"from":"poa1EjAyEgSxt9cLWQUV3mAzdDoNdUtFr1eMVJbJv7tq6Uu4","nonce":5,"parents":["89485be92cd8a9b702870ddc3bf36a36eac78f687cd44cff2c87c52cfd4ff2f0","c0b71b56618390d7363a85f51af012138892993ba6eba31ab04c370b11bcbdfc"],"ts":1793055547,"cid":"poa-mainnet-1","sig":"4X8aNBoEY7QYfYQ5vDuDFPTEtCocWBuiHA2fgah3hUDYEY71BYvPgvdxVaknTXzWc7Q46n3WP1JefyJhvCBrxmjo"},"checkpointed":{"height":71176,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T14:34:34.130Z","checkpoint_height":71176,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}