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: 709
Hash: 3407a645d5c51c9553483eef93ce706efd8899ff22ed84a2cdc16866aacc8730
Previous block: 56c9994a7942fd13295afeeefe04b15f13a5f5bae00462899fb80b87220b7e0e
Next block: 0497205501047aac58de7d3f87027f45980e1698c604c1067560a08c9b7b1e5b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864262
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f60331f5d5be9a9fc80e1656c75808726f6df9a15c2b2d28f9577731aa9b9584
Median time: 1701864261
Difficulty: 4.656542373906925e-10
Confirmations: 1535
Chainwork: 000000000000000000000000000000000000000000000000000000000000058c
Bits: 207fffff