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: 994
Hash: 3ef6d73add7775c322ca1827a7456f853031cb4a5387836b4cab32bfa6c1f2f7
Previous block: 5788c5fd49bf6fdd246e8fe61a3d3c13bdbfbcf01acf2785d1ecf6584cc0fcf3
Next block: 4e9a7c4478eff5b0d1910785c784ddfcd341ae47e803638f6e9092dfe42f3b86
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857834
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 8e1bc6136391d311cfe00c790b1b94228abfeec520a90797de2c03af19201ac8
Median time: 1707857833
Difficulty: 4.656542373906925e-10
Confirmations: 1250
Chainwork: 00000000000000000000000000000000000000000000000000000000000007c6
Bits: 207fffff