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: 1983
Hash: 5ee0b03d985e6328610ff708aba5644bcbc3c29aedafbbc51fbb309ffa3a2025
Previous block: 61119006013f9a302f5c41fa67aeea7fec3bc4313e9a64be8307b4046b2bfb8c
Next block: 31adb04136be8d7e2288f54bcc02cb08e6f30d2cd42ff0838d6ccb4ab40a7a51
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159254
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 4d2c9848b0f31ff7e00b33cba88ffe2577de5a97d402f1975eb4d3d53b1c7edc
Median time: 1719159253
Difficulty: 4.656542373906925e-10
Confirmations: 261
Chainwork: 0000000000000000000000000000000000000000000000000000000000000f80
Bits: 207fffff