The explorer is running in 'regtest' mode. This saves disk space, but there is limited data.
The code for this application can be found at github.com/pdxrod/blockchain_explorer.

home    blocks

Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2057
Hash: 6b6451935d77010f389e95d05ddae2873bcef5a31b26ee05ac19c28f60742e43
Previous block: 3e2acc39a953e7f3fe955077e18f6ee4378bced207ce8f56acfa884294d52fa0
Next block: 636339fee2f1903b7c15478b3781a0f906525a9cdd7bc4461710c3b40e592ca7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964779
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 3a43810005feed50b9bc71c6e8b1879c221fd151f38f8b93c44a29074ba202fe
Median time: 1728964779
Difficulty: 4.656542373906925e-10
Confirmations: 187
Chainwork: 0000000000000000000000000000000000000000000000000000000000001014
Bits: 207fffff