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. mupBAc74k

Height: 2233
Hash: 38ceb31d77b9a11215c7e92517c006add7cde37fed63e8586f19e7ef29195149
Previous block: 6723936db4dc1ef7b4d2c53da10ff8ce4aed6dbac373a39438d0379b6502a6dc
Next block: 6ba425f46674ea24f144a1b3fd3559373502596668c77bd8d16216d0b5ef0c5a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480981
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 7954110e66792aa4e093d60706cc29bf496f773610381716d08c866839d961b7
Median time: 1719480981
Difficulty: 4.656542373906925e-10
Confirmations: 59
Chainwork: 0000000000000000000000000000000000000000000000000000000000001174
Bits: 207fffff