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: 1732
Hash: 405c095d72d234d8fa7eed457023ce953be51a0c505de5d2d75e7f9ffd4132e8
Previous block: 34cd2b1e037f293823ac8b5b747d4b49d7d28927de92680c81c445c58bc06874
Next block: 565da696eef32725973036024bac83858b275a550641c761c884a79ed541fbb7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159212
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 7edeaaeff6f2166c93457b4e0882e32ab9b37a70499d7bb6c837137455d8af34
Median time: 1719159211
Difficulty: 4.656542373906925e-10
Confirmations: 512
Chainwork: 0000000000000000000000000000000000000000000000000000000000000d8a
Bits: 207fffff