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: 2022
Hash: 619d15b6c1c53188072f2457f35509b2709501d25b1d8e1e653dba5e3226a9a6
Previous block: 2766fe7a7b0170e0167dc359caf5e8030eb2765e6a38a363aa7d946b1e11d072
Next block: 76e4a61153fcded41901dedf2a86062df3aa8f2fe01ac4bb95b72908294e545a
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964774
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 78ceb25eb1eed07d531a65786ee208689618c08ef0a491018df5b4d4e7e603f9
Median time: 1728964773
Difficulty: 4.656542373906925e-10
Confirmations: 222
Chainwork: 0000000000000000000000000000000000000000000000000000000000000fce
Bits: 207fffff