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: 2518
Hash: 538cc99ea828498ec4ca157b5bbe5ef9d69e512fd3fb4409168e0f65ca501be6
Previous block: 1b3b2a41ea520c7eb24b528c4dec2c743ea952a8469e4a088aed4c49bdd52aae
Next block: 54daea0e3bccc343229c897628f4f5db16cb946bca923bdd951c30f485160cff
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847306
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: d4f71633cce67f715288302fe6932240fad8ccfe47954c3186d1b8768f7fcae5
Median time: 1743847305
Difficulty: 4.656542373906925e-10
Confirmations: 125
Chainwork: 00000000000000000000000000000000000000000000000000000000000013ae
Bits: 207fffff