The sha512sum.txt file, which contains the signed hashes of "all" the squashfs images, has not been updated since last week (2015-05-16). This makes it impossible to verify the images that were generated since that date. The most recent snapshots in the file are: 53c248767d410e95ed5944f7158a2f69338d5dc70f89950ce5ec2d2ef6b140f1828174202f35653435f4a702b6cdf58425001dfc8472f9b3c0414a0172ecb047 gentoo-20150516.sqfs 53c248767d410e95ed5944f7158a2f69338d5dc70f89950ce5ec2d2ef6b140f1828174202f35653435f4a702b6cdf58425001dfc8472f9b3c0414a0172ecb047 gentoo-current.sqfs
the squashfs generation script is buggy and I may disable it entirely soon. https://bitbucket.org/mgorny/squashdelta-daily-gen/src/ that has the code for generating the snapshots, I'll cc mgorny to see what he wants done
seems fixed