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: 1020
Hash: 634a8c2df1d949168be336b9b3570753561188d0d8accb0b6f38a06e0b59ab9d
Previous block: 2082072edf69f1873f93458459388efd72b67f6293252fa7d69ce4bc9f1c182b
Next block: 30c1aaeba4a0b41089fcceff93936309059b5c73e5c083278936c6734cbeec0f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857838
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 4ea004c856e66f9c4a5028e15a6857dee5318f880f2545c2812f0f5094ae49d7
Median time: 1707857838
Difficulty: 4.656542373906925e-10
Confirmations: 1224
Chainwork: 00000000000000000000000000000000000000000000000000000000000007fa
Bits: 207fffff