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: 110
Hash: 54ec41a69b6d13314ab14551b6aa36107e90559eb6cdf50a4fff03ab0c1d2066
Previous block: 0aa4e7465012960aaa5eed03cd60568e1847b9cd3ca930df389b536cc18924ea
Next block: 60a4211a0a161ae2a5697382b9110320241d17fe92b799c8abcf4f1ab5668508
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597886
Stripped size: 217
Size: 217
Nonce: 1
Merkle root: f7c668b22dd5ab947785a66f36b5a6d4a3302c0faf3d8d5c579b2ac76bc054f0
Median time: 1701597885
Difficulty: 4.656542373906925e-10
Confirmations: 2134
Chainwork: 00000000000000000000000000000000000000000000000000000000000000de
Bits: 207fffff