Quote from: Tigr1987 on February 13, 2019, 12:43:31 PM

128b87b572c379e92d8dd9f2f89118ec0bd8fe7ad6214312486d572d8718f8c7 -Private Key
a7b9b9a51a294e09d06e5d4d91b720a3a74be2935c1b570f565daed1a8a8d184 - Public Key
19C1yVYeWBouc4ZWc1zm3xaUzNBNqWyB3G - adress

first of all, a public key (according to the agreed upon standard) must start with 0x04 if it is uncompressed, and 0x02 or 0x03 if it is compressed. yours doesn't start with either.
additionally that is not the public key of the private key you posted. the correct public key is:
04C7F4A880E496EE7335424E9613E7B29D37CEF9151DE1751D44E9159C699E07A20038BF72B3FF4 FC35F1A6FF2E43F56DC4D5743BE3AFF67F1A7C5F6A9F227B47C
or the compressed form:
02C7F4A880E496EE7335424E9613E7B29D37CEF9151DE1751D44E9159C699E07A2