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. mupBAc74k

Height: 2275
Hash: 18a1a0a585f756e2ad1e7cf571406a56b92d0bc1ed06d26f7b86458763e2d832
Previous block: 78bb821fd4ed8758a514a50e47a31b01e33bdd6255022db5e6f7839aae8ccda8
Next block: 08fe4802c59ae2b6e5402d7fdb928deed62349bbbfaed1e7dcba930354798730
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719480988
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: d3b3d1f8d05258e91a0d45bf4d543e59710faff95fea46ed6a707ae46e8bf492
Median time: 1719480988
Difficulty: 4.656542373906925e-10
Confirmations: 17
Chainwork: 00000000000000000000000000000000000000000000000000000000000011c8
Bits: 207fffff