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. mgqFp9Dhy

Height: 2199
Hash: 23756d9d4292ef260322268519dfda6fbef7facf8e139ed7f7e187378ad11627
Previous block: 5aeb7b55a1cb09134db87002181a9b9466b432612f93fffbbcf4bb0e0891e6cb
Next block: 3ef6e57f1d7b8f5a0eb722096f52397742e8ef64582425cbfa9d475d008f60f7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964803
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 1ff70ae25f006af600a1b976846d7f3aa666ac5db39b140db5e87a462f979863
Median time: 1728964802
Difficulty: 4.656542373906925e-10
Confirmations: 45
Chainwork: 0000000000000000000000000000000000000000000000000000000000001130
Bits: 207fffff