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: 2148
Hash: 24c9099cdf00124f985cabfad222afb2d94ea840a8c4aa4558d66a0f7bb9833f
Previous block: 7ca40e1a41a015975418bdd3776d12b19aa6eaeb639dafe136e707f37ec77f00
Next block: 73c32fcbd32431b64d95bb88171e7135d1d97330442018f667acef340885d865
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964795
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 01087182081a89e7f18737a94430643bc7519b4dbf7c94f969c8e0c19ecb2caa
Median time: 1728964794
Difficulty: 4.656542373906925e-10
Confirmations: 96
Chainwork: 00000000000000000000000000000000000000000000000000000000000010ca
Bits: 207fffff