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: 2340
Hash: 3cd21096cc8fa59513fc8f504fcb7acc8cb1861b0ed0263a27d9d7ab4ad5a363
Previous block: 72186fd82a6ecf5f0df0e9334bcd2a86a6670ecb8b4ff950c5c11181079dce84
Next block: 485bdf71751efc56189b155d7e1e8b200544d686bebd0ee8c8aab21b8c621bc3
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847277
Stripped size: 218
Size: 254
Nonce: 4
Merkle root: 65fb13cf2e8955a2202ee0a44b1251475897da3b7125f274a2ece2621ce8b927
Median time: 1743847276
Difficulty: 4.656542373906925e-10
Confirmations: 303
Chainwork: 000000000000000000000000000000000000000000000000000000000000124a
Bits: 207fffff