After decoding the amount from ecdh amount, we get the numbers which is obvious not in decimal, e.g. "0010a5d4e8000000".
Then we can transfer them into integer with the following python code and get "1000000000000" which means 1.0 xmr:
def hexToInt(h): s = binascii.unhexlify(h) #does hex to bytes bb = len(h) * 4 #I guess 8 bits / b return sum(2**i * ed25519.bit(s,i) for i in range(0,bb)) #does to int
Therefore, I am curious about what the standard it follows?