0

First of, thanks for jb55's wonderful tool for making dumping a c-lighting key easy. However, this is not the point of this post. What i am here to ask is if you look at his example here:

xprv9s21ZrQH143K2W9UqiTJL3qndXzRkEuzAoNwd6VLRu2VDtX6tACVz9q8BzDmJDkB6c6QQnfEWWvLtxB9M68XVpmcJCQodFrr843paWAXGeD root private xpub661MyMwAqRbcEzDwwjzJhBnXBZpv9hdqY2JYRUtwzEZU6grFRhWkXx9c3HJ4EKR1Nvdwf5U3VoekstoKSKjfcJYhRrhMYeEzZzu2h7uZAQX root public xprv9wPk6zRy29x8BLXUHWh8ssqf89xQWtrZeLUgEXyUKSqNdUJhXTJsMtdLCexXxhgxPYUFpQvUhz2WAyhh3uCXSLedbHkvX7jTnX4xQofjdbA extended private combo(xprv9wPk6zRy29x8BLXUHWh8ssqf89xQWtrZeLUgEXyUKSqNdUJhXTJsMtdLCexXxhgxPYUFpQvUhz2WAyhh3uCXSLedbHkvX7jTnX4xQofjdbA/)#u4tc9nwu extended private descriptor xpub6AP6WVxrrXWRPpbwPYE9F1nPgBntvMaR1ZQH2vP5snNMWGdr4zd7ugwp3wukcTUxKu2rLCN9VBQAW3xioATnEWjZvQpx9cybj1jztJHJyp7 extended public combo(xpub6AP6WVxrrXWRPpbwPYE9F1nPgBntvMaR1ZQH2vP5snNMWGdr4zd7ugwp3wukcTUxKu2rLCN9VBQAW3xioATnEWjZvQpx9cybj1jztJHJyp7/)#f64dm6yh extended public descriptor

If you look really carefully, the actual extend private/public keys derived from the root (m/0/0) actually are different from what his example says.

Rather it should be:

xprv9wT3HD7uDSkLA8WbJ7gVh57EJ3mmuVMesRTQSC8utJ3GCkCdp4LrbGFjrtW8vUjXEjL9tuC4uJpc33R6SYLxSx7qvRWgr7zf3pHxJupHzPG xpub6ASPgieo3pJdNcb4Q9DW4D3xr5cGJx5WEeP1EaYXSdaF5YXnMbf794aDiBTMaEXXB5tkQgdjgWCGN7g8BocDF8CnFYaiUdEnzJxznPUi8Vx

If you compare above with jb55's example after base58 decryption, you'll realize that everything is the same except the [parent fingerprint] in the two xpubs and of course the checksums. Despite the differences, they both produce the same addresses.

What could result such a difference in fingerprint happen? Does the author purposely do that? It can not be a mistake because the checksum there is just for preventing one.

Another question: will the difference in the [parent fingerprint] make any issues in the child generation?

0

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Browse other questions tagged or ask your own question.