import json

res = {}
with open('artifact.json', 'r', encoding='utf8') as f:
    j = json.load(f)
    data = j['data']
    keys = [j['keys']] * len(data)
    for k_array, v_array in zip(keys, data):
        tmp = {}
        for k, v in zip(k_array, v_array):
            tmp[k] = v
        res[tmp['id']] = tmp

with open('artifact.json', 'w', encoding='utf8') as f:
    json.dump(res, f)