The escape fraction of Lyman-continuum (LyC) photons (f(esc)) is a key parameter for determining the sources of cosmic reionization at z >= 6. At these redshifts, owing to the opacity of the intergalactic medium, the LyC emission cannot be measured directly. However, LyC leakers during the epoch of reionization could be identified using indirect indicators that have been extensively tested at low and intermediate redshifts. These include a high [OIII]/[OII] flux ratio, high star-formation surface density, and compact sizes. In this work, we present observations of 29 4.5 = 6 have provided a substantial contribution to cosmic reionization.