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: 906
Hash: 1c04cf1a91652fa8aa2c73f5a645aaf321637f92f5c95bf92a4789de1f252c7e
Previous block: 2f09d33dcaf0ef46bac6eb86a6e2cad95010e8e786c711ab129c2908ad470f5c
Next block: 0130853fc4517ee06901f525ae99fc5b106d87444a688272133a86adcf0dda8c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857819
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 5ca0b4991f2f16fe65ea14e8c902f9db76c7bf68c13b7f3d8135d48882a77e1c
Median time: 1707857819
Difficulty: 4.656542373906925e-10
Confirmations: 1338
Chainwork: 0000000000000000000000000000000000000000000000000000000000000716
Bits: 207fffff