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: 995
Hash: 4e9a7c4478eff5b0d1910785c784ddfcd341ae47e803638f6e9092dfe42f3b86
Previous block: 3ef6d73add7775c322ca1827a7456f853031cb4a5387836b4cab32bfa6c1f2f7
Next block: 12eab32668dd962ba578416fc53b764ef31f3a27e14b01bd3dbceba0ed865aa4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857834
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 63e43ecc4e5269eed1956a276818bd21a74a385fa29b9103c3785e22bae2df6e
Median time: 1707857833
Difficulty: 4.656542373906925e-10
Confirmations: 1249
Chainwork: 00000000000000000000000000000000000000000000000000000000000007c8
Bits: 207fffff