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: 1413
Hash: 750135505a40a44e785dbb2adaee45a4c34c8a6dcc1ddf27fff02ad089cc4f00
Previous block: 0089a61b540a2624eb021d5d8cd056c8c80226e9b2b62b647ba45166091d7f01
Next block: 5bf430658bff60b33414cc4ea58e1649ebc61756305efff718498647e3ad6b3e
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697643
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5c8e09bb01d721e5cd5007a7bd0b8f5b0aa6e1b5a80d21e8921d7f4344659321
Median time: 1718697642
Difficulty: 4.656542373906925e-10
Confirmations: 831
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b0c
Bits: 207fffff