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: 2277
Hash: 22d2990d6eb0111da8d4c2df8016ae835c83fe8e6e1c4c082ec4a003f73aa55d
Previous block: 1855e172cdba3ed3a50d9f3df9cbf21e50fe7186f11445a592e1da38fc75d402
Next block: 1f89e85718420b65c6c4064d1bf7a65498b0ef6748073fe288915d66f5f03837
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847266
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 3fd575f27bf625375dd161e6526cee69fe9254e1fe4045b452445d7aa18ded8d
Median time: 1743847265
Difficulty: 4.656542373906925e-10
Confirmations: 366
Chainwork: 00000000000000000000000000000000000000000000000000000000000011cc
Bits: 207fffff