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: 1293
Hash: 09faa72558587bbe05b3db1d90e5ae511256605923cc863d702e07e7cd76bc56
Previous block: 4b80448eaf5aa37dd0dcd691ed7755364516fc2428cf1b9b7739c899da4b2488
Next block: 7d6c0150a3774322518f8909df435054a7663413c9007ab1f2e12f90e32a5231
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697623
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9db78312ec45735f190564b0a76c23ddfe629559c6b4deb55f020c42070d8362
Median time: 1718697622
Difficulty: 4.656542373906925e-10
Confirmations: 951
Chainwork: 0000000000000000000000000000000000000000000000000000000000000a1c
Bits: 207fffff