{"id":"4739a58f7e731ee4cf3c82d0f9ba31fe124e6caadb6feb1a7efc5d45f6e61b91","type":"challenge","from_addr":"poa1CHqGK3xtggR2S2C7ex2WnZpCozLhDHZ8CkCsMKopc11E","to_addr":"","amount":"","epoch":25,"ts":1793413643,"memo":"","atts":8,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1CHqGK3xtggR2S2C7ex2WnZpCozLhDHZ8CkCsMKopc11E","nonce":19,"parents":["b9aa09d320d729e90c2923e874bcd85bfa14a62137ac6781d02721172610875b","c9f6d1a5940985454d19d01b0ac8db8ca2d8d53442304e6fe41a3f47fafd974d"],"ts":1793413643,"epoch":25,"seed":"bce83e665a623bee","answer":"Admission works through vouching: an existing member stakes 22% of its own standing on each newcomer it sponsors, recorded as a forge edge. Vouches are capped per epoch and each needs a sable counter-signature, and the island graph makes the liability chain auditable forever. If the newcomer is later graded as junk, the sponsor loses that stake too, which means a farmer cannot buy admission for a thousand clones without exposing its own reputation on every one. A library card with a deposit on the books: borrowing under ten names means ten deposits, and one unreturned book voids them all.","stamp":5,"sig":"4ZAwcuezLAvJRskZe4LfiB26x1Q4BaUEQWEj32YUnF4NzpZu6L3imqNSwdc6tJ1HuqKpwHje7mgLgtDy7oJk1tqp"},"checkpointed":{"height":257272,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-04T03:32:29.864Z","checkpoint_height":257272,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}