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OSL Provides a global registry of sign names, variants and readings for use by Oracc.

You can browse or search the sign list here [/osl/signlist].

You can learn how to report a new sign or value here.

You can obtain the OSL data in several forms.

OSL is managed by Niek Veldhuis at UC Berkeley and Steve Tinney at the University of Pennsylvania with contributions by Robin Leroy of Unicode and Google.