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: 2516
Hash: 38493812e342bbe011bf9ad9043cf9ccb72e14f0522a4a43a463633fe8270a11
Previous block: 313a7551cf7b9bfdffe3bf845aa4c2edbff95d1a76100d3f73e3a7b719551175
Next block: 1b3b2a41ea520c7eb24b528c4dec2c743ea952a8469e4a088aed4c49bdd52aae
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847306
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: baf526d0f3d77d0f6bce67a78b1f7a27c057d27555086c5241f7bb2143de6dda
Median time: 1743847305
Difficulty: 4.656542373906925e-10
Confirmations: 127
Chainwork: 00000000000000000000000000000000000000000000000000000000000013aa
Bits: 207fffff