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: 895
Hash: 5bb0e86c1ab5bb10e70c064dc7e59b00abe807ac90bcb84feb22b81a5d8a66c3
Previous block: 4082d7e1062f914006a6c338a25909a569357a0522dd52945f18cb3d9efa9f2d
Next block: 5b71566895c1fc8a3b1a2b278cc35553300009dbfc690a931386eef2aa48305b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857818
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 14c73ae67f755147d2dfdecf9d0109b02d63766a042f5ffe0a431ee4a5efe71d
Median time: 1707857817
Difficulty: 4.656542373906925e-10
Confirmations: 1349
Chainwork: 0000000000000000000000000000000000000000000000000000000000000700
Bits: 207fffff