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: 1932
Hash: 10d2fe6035b9b2630bdac43168654caad0ef9c040414c900dca27f3afbd44400
Previous block: 109bc86640e054b4a1151b6d889300dbe510920988b2c23614947af047a1c238
Next block: 453ec1dff1fff11b79df4341db3f497807387a60e9e4fa644c0d6e452f0ec26d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159245
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 04dd1baf3fecef3d74257980128ab9ff142f7684eceb1e2b34a73eb1d6b72b86
Median time: 1719159244
Difficulty: 4.656542373906925e-10
Confirmations: 312
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f1a
Bits: 207fffff