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: 2088
Hash: 0ec9a4ea0358a0ea9e23fa06853406202f84878b5e2a2cea34c247ed85aa195d
Previous block: 13b8169dcb0c27c3493f3435e611310887f1d03131ebc2d69fe2e8c255fea6ca
Next block: 5a8c909fbce1ed06abe57ebe4f4e7e5088190d872a68867c074ab21fa5b723fa
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964785
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 7017791feb6cfc60db36deac66df2bcf2f63a39c8a94fa39969271ce2babc3a2
Median time: 1728964784
Difficulty: 4.656542373906925e-10
Confirmations: 156
Chainwork: 0000000000000000000000000000000000000000000000000000000000001052
Bits: 207fffff