secp256r1 and secp256k1 are both examples of two eliptic curves used in various asymmetric cryptography.

Googling for these shows most of the top results are Bitcoin related.

I've heard the claim that

Satoshi picked non-standard crypto which conventional wisdom says will be cracked in 5-10 years.

There is this discussion on bitcointalk with various opinions to both sides of the argument (also check out this article). I'd like to take it away from Bitcoin and into the general cryptographic question - is secp256r1 indeed more secure in some sense than secp256k1?