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: 1495
Hash: 44b510d8a1976b86b1809cf87c2b85b480fcc99809915b678b1b4608029c780f
Previous block: 0ed82a63b7445242b125591d2154fda0d3aa9ea47ee99eda163767581bc4e100
Next block: 5223f76de7f9cc368ea4f44457554884dc971cd54e6d99bf397c9e3cf112d2a4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697657
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 58114c7906198f0304df3a5723c9281b9cd85035c8476bee1e8545ff636cf1aa
Median time: 1718697656
Difficulty: 4.656542373906925e-10
Confirmations: 749
Chainwork: 0000000000000000000000000000000000000000000000000000000000000bb0
Bits: 207fffff