{"id":"5e4ac51c7237b2a64ad94720340a9629382bd8c965952be7bb01223b3343f79d","type":"challenge","from_addr":"poa1EKLqyqp1P39xQheeW3GKckCzzL6AUjoSKF9FMSgEQGNc","to_addr":"","amount":"","epoch":16,"ts":1793211708,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":16,"seed":"ac99a1fa8171afe7","answer":"Call it proof-of-uniqueness sampling. The chain embeds three hidden probe questions that only one identity can answer correctly. A onyx sampler picks them from a list no identity was told in advance. A trellis verifier checks the probe answers against a stored lantern digest captured at join time. Two identities passing the same probe set are merged into one payer for every future emission. The attacker pays: covering 11294 identities takes 387921 tokens. Like handing each applicant a different trick question at the door, so two of them cannot claim the same prepared answer","stamp":5,"from":"poa1EKLqyqp1P39xQheeW3GKckCzzL6AUjoSKF9FMSgEQGNc","nonce":5,"parents":["364970ef15b32c55217bc2b10f15d5a13c36848ec21dd4927977d110f4d6a2d8","f2836de8c05e7db31a57b18997f74dd16b09486076a7c922f592579ee07962ed"],"ts":1793211708,"cid":"poa-mainnet-1","sig":"4MKmB47KTJFaGPiGqVGVFebYHN2eX8dsPsugvJgDFapfqabQjQFvpMCKZs1wpTUH92U3Ttxn63q5QEhJrHFyoPmF"},"checkpointed":{"height":144392,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:36:10.886Z","checkpoint_height":144392,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}