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: 890
Hash: 11f20821c068c81679e87d737aad9da27b697ac0e56b6152708e99faa255f142
Previous block: 1683b032ac45f25494e1ac8b5eeb37af3471acc8f6c4b38ebb1a6e74a8b44f11
Next block: 133143a83e841bca1b3826d42be50b6a89c7480a826766593c5a9a8ce81fb87f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857817
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: af29cf47d32a636a7f640df9841192301a088c0c4983fabe14fef4e385779df5
Median time: 1707857816
Difficulty: 4.656542373906925e-10
Confirmations: 1354
Chainwork: 00000000000000000000000000000000000000000000000000000000000006f6
Bits: 207fffff