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: 889
Hash: 1683b032ac45f25494e1ac8b5eeb37af3471acc8f6c4b38ebb1a6e74a8b44f11
Previous block: 072febead3299f4aebcaf6d698422f437d73056fe9a22eca36f22f90f3b64627
Next block: 11f20821c068c81679e87d737aad9da27b697ac0e56b6152708e99faa255f142
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857817
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: cde86a31d23dd004ff822173718b139ace5c5bbee20bcc57b99a0678d8fc2824
Median time: 1707857816
Difficulty: 4.656542373906925e-10
Confirmations: 1355
Chainwork: 00000000000000000000000000000000000000000000000000000000000006f4
Bits: 207fffff