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: 1374
Hash: 3c14327639a84b8f2fa5f778839b8412e8e8e5b3dfc8cbc672051f28b3e345e6
Previous block: 6fd50b494703a17e6d116304281638dfef91991f20731a17da970ece035e3a28
Next block: 2eda56feab86d210a1130e921a8897750a815bfb5ecf77766b1af2b1f0d49e95
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697636
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: ca30567d11864834bbe62300228e1319339e583e1826446a6cabb42885ec1472
Median time: 1718697636
Difficulty: 4.656542373906925e-10
Confirmations: 870
Chainwork: 0000000000000000000000000000000000000000000000000000000000000abe
Bits: 207fffff