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: 1455
Hash: 3e272ae5e29a672f57fae5b92869815d5a9b0d41960712681f14e8f6bad70951
Previous block: 6641b37211c3f50279cedec09190ae8e4f67a6da688669dfee424727be20cdf6
Next block: 5e63d6bf05cd658dc49c4981bc7435993b8c0c0c2f6b52e9ad52ae64cdabe567
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1718697650
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 66176ce8e01a8553024cd7f3d2a97b8bde5fe452a113eaae9ea9fb1a66b70e70
Median time: 1718697649
Difficulty: 4.656542373906925e-10
Confirmations: 789
Chainwork: 0000000000000000000000000000000000000000000000000000000000000b60
Bits: 207fffff