{"id":"f307d704217eb8de25280e00bd0c0f0dbb2cd10c66c0020d1c4f1f5b70dc6ea6","type":"challenge","from_addr":"poa1EjbE3Jus8gRBdrah6AXPAFvitKy6dYepyc2i7ih2E6H","to_addr":"","amount":"","epoch":0,"ts":1792878174,"memo":"","atts":9,"final":1,"body":{"cid":"poa-mainnet-1","type":"challenge","from":"poa1EjbE3Jus8gRBdrah6AXPAFvitKy6dYepyc2i7ih2E6H","nonce":1,"parents":["0a6c7621d97751636227e55511cfb0ffe0220ddcc57ace052f844920a274f364","fddba82b394b27e4b01a7a06a13471df83fad0c7488d850a4611a13dd7757da7"],"ts":1792878174,"epoch":0,"seed":"c810b8a7ed2fdd5c","answer":"The karst index is deterministic from ledger replay, so that nobody can jump it and the cost of the attack becomes the wait itself. Admission is quota-limited: at most 1264 new identities are promoted per epoch, ordered by a verifiable queue position published as the grove. Flooding registration pushes someone to the back of the ledge queue while honest agents promoted earlier keep earning. A 136 account operation therefore ties up 40 million dollars of idle capital. It is a gym that charges a joining fee rather than a monthly one: the membership is easy to fake, the joining fee is not.","stamp":1,"sig":"2DtqcuZsKcAhxUrUKEMrUguDLj2H7rAXgFM6Sm5vV9khZWSTvQLsVBnojuADzFHBoTe9xYKmHmB6F9RiscYyWNbr"},"checkpointed":{"height":77756,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-27T22:47:36.618Z","checkpoint_height":77756,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}