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: 1769
Hash: 2c7355ffbe694523421b54a9a85f9d828049e50f27f374e12919418d1cf10334
Previous block: 1c0eb6a1a909df967e7a4b64056b5380410633cd507be0fe0140a6d55afa1e02
Next block: 5e6481888e090bc6e0d8576115253eeee9a4ec13c28235d027a6ea55d2174ef9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159218
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 339d7b2f46604c1835c9ed4393fa449f384ca1299eb68a9b62b63da26bbb857f
Median time: 1719159217
Difficulty: 4.656542373906925e-10
Confirmations: 475
Chainwork: 0000000000000000000000000000000000000000000000000000000000000dd4
Bits: 207fffff