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: 2438
Hash: 77326dbdc25bfd85389caf4d0e6a52c1820597d4305a3dec37fe8ea8c4a30e9f
Previous block: 099c29c0f33e347ba0f7acb0aa835e54c723833bd132c038cdba67e1a2fef08e
Next block: 3d7175b7dd597caebdc583d99c1aec56b6d5a2a6f06728375716ef6c2557bbdc
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847293
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 497099946062145599cb15c0b1ef00547d770e18ec1f65b833faa421e31b97f4
Median time: 1743847292
Difficulty: 4.656542373906925e-10
Confirmations: 205
Chainwork: 000000000000000000000000000000000000000000000000000000000000130e
Bits: 207fffff