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: 1199
Hash: 5d4f934eabd02029266a67fc4138155e330f7900172aaa0781d882d5ed17522b
Previous block: 625938ac91285abc1d62f9893075956e14dcf3b10afba45d86d1e9b4f2dd1c3c
Next block: 79c99921a7c52c9f4bb43b33ad4e90d1d1347056ff9212c23bc966e670b44c80
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857868
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: d1ccd3446dfc90d6340a0304225de3b41f2f0c2138da24d68ab1c221f49ea422
Median time: 1707857867
Difficulty: 4.656542373906925e-10
Confirmations: 1045
Chainwork: 0000000000000000000000000000000000000000000000000000000000000960
Bits: 207fffff