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: 2346
Hash: 40bf78516a7f2d5c6d3f97505754e9b34da72748329ca93327d58ce5f6f50953
Previous block: 58858cc486aa70b4acc95c7fcc184948e12fee3fe972e3e01a756121f9e90406
Next block: 7cb9cc5a1bc524ea22c99a30a147bd029cea6799abf06fe808ab75707bd87e5a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847278
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d47cc4c107ceaf1964298f76bf2f319c517fb4c0b7d5bac9cc564065ef73766b
Median time: 1743847277
Difficulty: 4.656542373906925e-10
Confirmations: 297
Chainwork: 0000000000000000000000000000000000000000000000000000000000001256
Bits: 207fffff