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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2119
Hash: 359f57aa23b14638e5d4401611f7c85fd04a4f4a1d69678e846078beaf8a556e
Previous block: 79bc34ded00ace241966444e328b4bb11f15a2014232582c5d1483c31f634482
Next block: 01c564d3256e734af75c991aa8870710c2c71a389de0e1a64cef6d6e6495d5bc
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964790
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 4b3fbbabc7199381e49399c0b3b2a5ba386b128c5b88ac93462bbe535143264b
Median time: 1728964789
Difficulty: 4.656542373906925e-10
Confirmations: 125
Chainwork: 0000000000000000000000000000000000000000000000000000000000001090
Bits: 207fffff