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: 1197
Hash: 09ce4d2a4fa944d5c6c47c2af53bbe3ca8f5ed3be406034b0edd6b8406943134
Previous block: 60dc30139e8c7a83ddb0ab72a2596f9690be266a0354a3e101391fdd7f4d5ac1
Next block: 625938ac91285abc1d62f9893075956e14dcf3b10afba45d86d1e9b4f2dd1c3c
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857868
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 0bd330cab34a980a7d23c0ff1425138083271b709baafa0b0724d2c721a4b337
Median time: 1707857867
Difficulty: 4.656542373906925e-10
Confirmations: 1047
Chainwork: 000000000000000000000000000000000000000000000000000000000000095c
Bits: 207fffff