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: 1748
Hash: 1f94694792facd82c1500cb35654716e48974dae64cb8a2ea0f744cbac6d8b08
Previous block: 2a5c43be6037f69fe2e1ae7312df6fdefdf6def8fd78a7619ab122c4f23c79ce
Next block: 7c47ecfc3cd19a0a752a6cba456bef337816bc88d952322eab59522835eebd15
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159215
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: b948df5d7872cef1d5308318747d627ee6a1ad92178980ef19dfc61329294f7a
Median time: 1719159214
Difficulty: 4.656542373906925e-10
Confirmations: 496
Chainwork: 0000000000000000000000000000000000000000000000000000000000000daa
Bits: 207fffff