import requests
import pandas as pd
import numpy as np

data = requests.get('https://lightningnetworkstores.com/sites.json')
data= data.json()


timestamps = [entry.get('added', 1519419592) for entry in data]
timestamps = sorted(timestamps)
number = range(1,len(timestamps)+1)

export = pd.DataFrame([])
export['instants'] = timestamps
export['number'] = number

export.to_csv('adoption.csv', index=False)