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For CHIME/ILT J1634+44-like parameters, we find that the beat clock drift |P_b dot|∼10^{-10} s s^{-1}, implying an observed-minus-calculated drift of tens of seconds in one year.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The assumption that the observed 841 s and 4206 s periods correspond exactly to the orbital period and spin-orbit beat in an ultra-compact double-white-dwarf system, with evolution dominated by gravitational-wave losses, magnetic dissipation, and tidal interaction and no other dominant effects.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"The double-white-dwarf model for sources like CHIME/ILT J1634+44 predicts a beat-period drift of |P_b dot| ~ 10^{-10} s s^{-1}, producing tens of seconds of O-C timing drift in one year and enabling a minimal falsifiable test via joint period and derivative measurements.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"The double-white-dwarf model for long-period transients predicts a joint drift in burst and modulation periods that reaches tens of seconds within one year.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"6cc1c39f9c9f7455ff2e857d59e0b7b10415a73ec7ba3c76738693f4e43569e2"},"source":{"id":"2604.11317","kind":"arxiv","version":2},"verdict":{"id":"abd19a5c-eab9-4608-8507-68ac5e9de713","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-10T15:13:37.834515Z","strongest_claim":"if the burst period is the orbital clock and the long-period modulation is a spin-orbit beat, then the modulation period is not a free timescale. 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