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: 2136
Hash: 47ee694224440a21e4afa7ad9a8fea29c98f974bcfcb0473e865e6233cc644ef
Previous block: 1ec1959b19fdc83a692ed829ea531a5aef9621ad1650936ae62f90712beee655
Next block: 765bb3c0851f68a22d50b484fb5c43582287ede9d243cfa838b453eed47d7cc5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964793
Stripped size: 218
Size: 254
Nonce: 7
Merkle root: 6b5364ce3f01105f2146a5a6a58b044a64fea1ac1aa87c469e216e5ac7048d62
Median time: 1728964792
Difficulty: 4.656542373906925e-10
Confirmations: 108
Chainwork: 00000000000000000000000000000000000000000000000000000000000010b2
Bits: 207fffff