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: 2560
Hash: 04ece2f3dbc87c9c750196f4e492305b5fedbc6152741d1cc43ed51b258b221d
Previous block: 116136edf989531b0e1f759da1263d749ac38a5a4db3951cc8c2f53f307cb964
Next block: 2aa0f7db77b7c3a0bf16680b830fa0ff083dd0d921f46689793a61a7fc08f5ad
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847313
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 2d1d09ed379190ef6e81413dbcc3cc898e36dbdf12639df6ea7ff0bc623adc6b
Median time: 1743847312
Difficulty: 4.656542373906925e-10
Confirmations: 83
Chainwork: 0000000000000000000000000000000000000000000000000000000000001402
Bits: 207fffff