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: 216
Hash: 0ad584fc3ce887bceadaa68759d0116278ce6a1c221d95a3e9a0474ecb3223ff
Previous block: 0e136713823bf281a2328cfd3d1efc1d1ab58a1bbec8441c50323ff70d89b0bb
Next block: 7a5d837f32fbb149cf09e1fb28914c58adf0cfc3681e4e450b2c6773ffb6a366
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597903
Stripped size: 218
Size: 218
Nonce: 3
Merkle root: 90389528c464d2c8d45fc71c101b8de23dfc350c5b66152aaca06ecce1bd6981
Median time: 1701597902
Difficulty: 4.656542373906925e-10
Confirmations: 2028
Chainwork: 00000000000000000000000000000000000000000000000000000000000001b2
Bits: 207fffff