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: 949
Hash: 0e5a4c40dd53beac1f0402fe470271f07c368ae50a8f5f60a53f1ad3222fe902
Previous block: 720e3b0631e972294376d60d13da1966701ea6879d0b132be6001cf903097c48
Next block: 5226fa67f824bc63845d4105ae41e0e0717464d8ebd9bb326acce76961ce8afe
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857827
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: d15f3f0af9248361bfc02a620fb56549ca812fe2ed18663e1efce6e614eb0fd2
Median time: 1707857826
Difficulty: 4.656542373906925e-10
Confirmations: 1295
Chainwork: 000000000000000000000000000000000000000000000000000000000000076c
Bits: 207fffff