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Our starting point is a structural characterization of the LSM anomaly in the Lyndon-Hochschild-Serre spectral sequence: $\\omega_{\\mathrm{LSM}}\\in E_\\infty^{1,2}= H^1(\\mathbb Z_{\\mathrm{trans}},H^2(G_{\\mathrm{int}},\\mathrm{U}(1)))\\subseteq H^3(G_{\\mathrm{int}}\\rtimes_{\\rho}\\mathbb Z_{\\mathrm{trans}},\\mathrm{U}(1))$. Physically, this class decorates a translation defect with a projective representation of the internal symmetry $G_\\mathrm{int}$. 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