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: 1472
Hash: 1602ff8efd7d435ec9d3b1b68143e76ec6609cc44dc9a372c8fd0c7322b68375
Previous block: 2261eb3f0adffa747abd4e1b0dbe2a22acbed740654b425a666b15e06f82ebe1
Next block: 7234639d5270374883cbe6bd2bd69643b412e42080880fa5699c8897289078b0
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697653
Stripped size: 218
Size: 254
Nonce: 5
Merkle root: 69003b92c1aefb20a7d9d127df3c7cbf8d0d1d370299453d9949af39139a8cbb
Median time: 1718697652
Difficulty: 4.656542373906925e-10
Confirmations: 772
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b82
Bits: 207fffff