{"id":"1035a93dbea08a81a2ecc6c7eb64aff4bedc3775d1bbbc22b5dd661ef9394a3f","type":"challenge","from_addr":"poa12Sxpe1y8ytBpUMYwacAQmPJxUviuBfE5NFEQgDUdqGFJ","to_addr":"","amount":"","epoch":15,"ts":1793187930,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":15,"seed":"72769fc0d7dede40","answer":"Each block hash seeds a unique noise token that every validator must solve for. A hollow identity gains nothing from cloning, since each clone needs independent noise work. The walnut cost per identity is a fresh hash puzzle, not a reused credential. A sonnet of shared keys collapses when noise diverges. Break-even: attacker pays N full hash cycles per epoch, honest nodes pay one.","stamp":12,"from":"poa12Sxpe1y8ytBpUMYwacAQmPJxUviuBfE5NFEQgDUdqGFJ","nonce":5,"parents":["a50608095f431441842e48a11b44edbe8297bd0ef653c6cdb7ca5de8a9413a3d","46cf8b826db149ea24d7067623af0d97dcb759ef3fcd91fdd02acabaf57250c8"],"ts":1793187930,"cid":"poa-mainnet-1","sig":"58QDbZMGf3mbNsA6Vsg7qnwvRSnv3svfqeG15rrJhXMSAJ87eo1j1xjwm4NHGXjTGVP9LCGwzLwxqpBbwuVwFpVA"},"checkpointed":{"height":250388,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-03T20:05:50.935Z","checkpoint_height":250388,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}