The optimal dimension of the avatar on Telegram is 512px by 512px, and itβs recommended to use PNG format to deliver an unpixelated avatar. End-to-end encryption is an important feature in messaging, as it's the first step in protecting users from surveillance. Each account can create up to 10 public channels The initiatives announced by Perekopsky include monitoring the content in groups. According to the executive, posts identified as lacking context or as containing false information will be flagged as a potential source of disinformation. The content is then forwarded to Telegram's fact-checking channels for analysis and subsequent publication of verified information. Telegram Channels requirements & features
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