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: 1042
Hash: 2e3deae0f0fe112f341f2ae29c71b4b3b38ece2a6305da050ad6a382d8353540
Previous block: 6a825c42a8340a908d021a39fb49ea050943ca9b327762a501dcb97c6db3a9da
Next block: 7e82a25796a684ecbe73220c0af5d75e956536a97de39413f8ffb8a9caeadf1e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857842
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: ad0620e089f671ab7d6e06e1cbdbc744030c8c28c1401566a139d116cc195c53
Median time: 1707857841
Difficulty: 4.656542373906925e-10
Confirmations: 1202
Chainwork: 0000000000000000000000000000000000000000000000000000000000000826
Bits: 207fffff