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: 1148
Hash: 7a019975c2e7cf92a847580a4928f5fae517a23dc609308d998fc658ed0944d3
Previous block: 1deba862499b99c24f49de4ad1ca9c7c277211517b66c19922199304ffae5f22
Next block: 11c5177d1a8887b639cfeafe0fd7f16bbc1c4d30df9e5b5c60ecc0bc863283e9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857860
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 218aa7b159b0a9b29b174119261f5ddc075b9fa6e89be136a0cff5e3858a8089
Median time: 1707857859
Difficulty: 4.656542373906925e-10
Confirmations: 1096
Chainwork: 00000000000000000000000000000000000000000000000000000000000008fa
Bits: 207fffff