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: 1147
Hash: 1deba862499b99c24f49de4ad1ca9c7c277211517b66c19922199304ffae5f22
Previous block: 37d8e09babb8ccb98363c9aea9f90037cb5ff0c16a320635c0baa0580ee2b6b6
Next block: 7a019975c2e7cf92a847580a4928f5fae517a23dc609308d998fc658ed0944d3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857860
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f6b9e680e34e0b57ba686a003c1a93b623d3408a256ad24a59d05c08726a620b
Median time: 1707857859
Difficulty: 4.656542373906925e-10
Confirmations: 1097
Chainwork: 00000000000000000000000000000000000000000000000000000000000008f8
Bits: 207fffff