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: 878
Hash: 417339ebb696c6b8a37d93d674aeb0af72dc47807cb076c9eecdf75a8020d4c9
Previous block: 7a22a8aa57c142be007d1c86a83b7097c8105a06f8797a2710203263c0e950df
Next block: 248da1387b2d91df269441a153e948f078ae9a9bf3ffa8b0ca69d99e9e7e716a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857815
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: cda7251fb4d36597805bdeaae4c1be127793faf6ff0a4f85c8179179044ecb25
Median time: 1707857814
Difficulty: 4.656542373906925e-10
Confirmations: 1366
Chainwork: 00000000000000000000000000000000000000000000000000000000000006de
Bits: 207fffff