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: 831
Hash: 5d692702a8c3e371a31953c750439806a13bb39f772424d3ef7b4a4ba6e1147b
Previous block: 7cf69fadbb5c17f6d130ddc6fd41a9cff2adcc20e87e07c12750fd8304a5be95
Next block: 6a180935ef85ef3e961f8859a49c908041253a14a9db6b637dcc98dd828cefcf
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857807
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 72e096f15a74e6cad63ec7110f2e16c1caac28ce19da685bebb45f5d696bbcef
Median time: 1707857806
Difficulty: 4.656542373906925e-10
Confirmations: 1413
Chainwork: 0000000000000000000000000000000000000000000000000000000000000680
Bits: 207fffff