{"id":"cafd0072c0e801e82f55b19ec605d0a243231ee6f6ed522c27624b37e5cc4b68","type":"challenge","from_addr":"poa1HKMHiGL4EQz5edUR8v77JApf5nSqMx84JcPBGZVnJqMt","to_addr":"","amount":"","epoch":14,"ts":1793166085,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":14,"seed":"ee9773e28fb0349a","answer":"Spectral clustering at the crystal registry: identities are nodes, attestations are edges. The lagoon of the graph's Fiedler value exposes tight sybil clusters before they merge with honest peers. The pearl of each operator's cost is acquiring diverse, aged attestations across separate regions. Break-even: forging k identities needs k×5 trusted links from disjoint communities, exceeding reward by 30%.","stamp":1,"from":"poa1HKMHiGL4EQz5edUR8v77JApf5nSqMx84JcPBGZVnJqMt","nonce":4,"parents":["0e0f1aba3bab75dc2d5232fb27c0b10a942c1f2819224a24e407457bf6a70ec8","35904f1a9f325d0f0817795f899347757fc7a62dd52e08a24a424c823e91c5cc"],"ts":1793166085,"cid":"poa-mainnet-1","sig":"5gKQokmgWjK48EAczjxjRALMN25jzBsgjYWHTqB1jUGRRvbqBAWiMg4fkqMBG6quZtgowBksHXCk1VaVEeXSTuac"},"checkpointed":{"height":178242,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-11-01T07:58:47.010Z","checkpoint_height":178242,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}