Reports

Telegram
An error occurred:
PUBLIC_KEY_INVALID

Apart from the correct data from @jwilliamson45

Please note how to place the public_key. Here is an example that works for tests, Since the documentation of python-telegram-bot doesn't explain this in detail, it just mentions it (until today, December 7, 2024):

<?php
$tg_passport = empty($_GET["tg_passport"])? "":$_GET["tg_passport"];

?>
<!DOCTYPE html>
<html lang="en">
<head>
    <title> Telegram passport (test1) </title>
    <meta charset="utf-8">
    <meta content="IE=edge" http-equiv="X-UA-Compatible">
    <meta content="width=device-width, initial-scale=1" name="viewport">
</head>
<body>
    <h1>Telegram passport (test1)</h1>

    <?php
    if ($tg_passport == "cancel") {
        echo "Canceled!";
    }
    ?>
    <div id="telegram_passport_auth"></div>
</body>

<!--- Needs file from https://github.com/TelegramMessenger/TGPassportJsSDK downloaded --->
<script src="../telegram-passport.js"></script>
<script src="../uuid.min.js"></script>
<script>
    "use strict";

    var host = "https://your-host.net"

    var nonce = uuid.v4(), callback_url = host+"/apps/telegram_passport_auth",
    files_base_url = callback_url+"/files",
    files_dir = callback_url+"/files_saved";
    
    // Example of public key
    var p_k="-----BEGIN PUBLIC KEY-----\n"+
    "MIIBIjANBC\n"+
    "mPPAR7busb\n"+
    "TmxT4yQswX\n"+
    "2TLg46ccdi\n"+
    "Tbam9PQiw4\n"+
    "Sb7Tqii9xl\n"+
    "QQIAB\n"+
    "-----END PUBLIC KEY-----\n";
    
    Telegram.Passport.createAuthButton('telegram_passport_auth', {
        // ROLL BOT:
        bot_id: 999999999,
        // WHAT DATA YOU WANT TO RECEIVE:
        scope: {
            data: [{
                type: 'id_document',
                selfie: true
            }, 'address_document', 'phone_number', 'email'],
            v: 1
        },
        // YOUR PUBLIC KEY
        public_key: p_k,
        // YOUR BOT WILL RECEIVE THIS DATA WITH THE REQUEST
        nonce: nonce,
        // TELEGRAM WILL SEND YOUR USER BACK TO THIS URL
        callback_url: callback_url+"/?"
    });

</script>
</html>

The nonce is generated with uuid.v4() from uuid.min.js.

Maybe this detail influences or not in the error: PUBLIC_KEY_REQUIRED

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