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: 790
Hash: 538fd95369d91fd8e659679aa89c7656c6c637841d4518d5f7ea5f54f16d4ff5
Previous block: 1f622de2a1071ed62c358f79995f8c06f80181e98ea4510e498f6b0888275cfd
Next block: 1890926f4d77e0ffbdcf10893cc68867958b7fa4402de19953a5c835c8ce69ad
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864275
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9f91c5fdbc378b95437bfc80989cd4aa025cdafdfa6d3560ecb40b5dd284d34f
Median time: 1701864274
Difficulty: 4.656542373906925e-10
Confirmations: 1454
Chainwork: 000000000000000000000000000000000000000000000000000000000000062e
Bits: 207fffff