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: 476
Hash: 54df5ce6b6270db3f31ee234991c260c01f64d829d90de53712304a28121229c
Previous block: 0dd42c85b0c9c66f39c6df7d200c36de9500daee47289d50d4c182d6109c37cf
Next block: 1128a1154c3794b587df403d86c3e413a1a403fdde00df63976d55e99c542619
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864223
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 0f2e0b2cc519487795f5599627f2146d11d13114ba8b87bbe99a9380d8ab4889
Median time: 1701864222
Difficulty: 4.656542373906925e-10
Confirmations: 1768
Chainwork: 00000000000000000000000000000000000000000000000000000000000003ba
Bits: 207fffff