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: 1811
Hash: 13bd8af515822127360142e5dcbdefb91bb430663e07219e4dadeef2c74e04eb
Previous block: 552ebd9d4aa5109c8c9df76c14495cfdef140643629580a29d6cf1cd47bc9c9f
Next block: 7c5a3b3e703de9ef4da233d8e01b5635b1f884ae5c571deecf5903efd7d29165
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159225
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 5eb044323d9786e7183726e3f42a9aca12101bda4e86796b343ea4d09c9a934a
Median time: 1719159224
Difficulty: 4.656542373906925e-10
Confirmations: 433
Chainwork: 0000000000000000000000000000000000000000000000000000000000000e28
Bits: 207fffff