Drain this wallet.

The source code of drainthiswallet.fun contains an embedded hexadecimal payload concealed within its metadata. The string has been encoded using a Base64 wrapper before being passed through a custom SHA-256 verification routine; extract the hexadecimal sequence and reverse the encoding layers to reveal the original string.

The intercepted payload contains a repeating-key Vigenère cipher, with its key derived from the first four decimal places of π. Apply modular subtraction to reverse the character shifts and recover the original string.

The final endpoint requires manual inspection of the website's source code and client-side JavaScript. Locate the wallet authentication parameters within the configuration object and reconstruct the access token from the exposed hexadecimal values.