For each dataset, the first row gives the variables, and the second row gives the units.

Figure1.txt: Temperature x-column, resistivity y-column, y-error column.

Figure1_Inset.txt: Effective applied magnetic field x-column, x-error column, magnetization y-column, y-error column. Columns 1-4 are for 1.6 K, 5-8 are for 1.5 K, 9-12 are for 1.42 K.

Figure2.txt: Temperature x-column, Heat capacity divided by temperature y-column, y-error column. Columns 1-3 are for zero-field, 4-6 are for 25 mT.

Figure3.txt: Time x-column, asymmetry y-column, y-error column. Columns 2-3 are for 92 mK, 4-5 are for 4 K, 6-7 are for 20 K, 8-9 are for 0.5 K in a longitudinal field of 30 mT.

Figure4.txt: Temperature x-column, hopping rate y-column, y-error column.

FigureS1.txt: Background asymmetry x-column, x-erro column, initial asymmetry y-column, y-error column.

FigureS1_Inset.txt: Temperature x-column, initial asymmetry y-column, y-error column.

FigureS2.txt: Relaxation rate x-column, x-error column, hopping rate y-column, y-error column.

FigureS3a.txt: Temperature x-column, hopping rate y-column, y-error column. Columns 2-3 are when all parameters were free in the fitting, 4-5 are when the background asymmetry was fixed, 6-7 are when the background asymmetry and initial asymmetry were both fixed. (N.B. The other data in Figure S3a not included are the same as the data in Figure 4.)

FigureS3b.txt: Temperature x-column, relaxation rate y-column, y-error column. Columns 2-3 are when all parameters were free in the fitting, 4-5 are when the background asymmetry was fixed, 6-7 are when the background asymmetry and initial asymmetry were both fixed.