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: 2173
Hash: 72ccb82543c4717c901f1a2dbf79f0bf8423733f9e4fb5fa3de13f978eb07a42
Previous block: 36a297d34238fbfef44d8c65a520812ae9285959a82abfa7aea4164a8ec68c2d
Next block: 2124c8b2967ec6286cf6399d7103dd2275ef5293680bbbacd9fadf2c82fec470
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964799
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: b527aef26251519c52aa4ba1dc4ea34caf76156dc30be8388cd2e3078c8427df
Median time: 1728964798
Difficulty: 4.656542373906925e-10
Confirmations: 71
Chainwork: 00000000000000000000000000000000000000000000000000000000000010fc
Bits: 207fffff