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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mgqFp9Dhy

Height: 2172
Hash: 36a297d34238fbfef44d8c65a520812ae9285959a82abfa7aea4164a8ec68c2d
Previous block: 5bda53167835e210007f5ad0c00c9fa9725b901f3000f349a96308758a4dd6f5
Next block: 72ccb82543c4717c901f1a2dbf79f0bf8423733f9e4fb5fa3de13f978eb07a42
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964799
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 76dc46d0a33106ae89df39f4f821ac161a57dff017a67226fb10f9146daeeaeb
Median time: 1728964798
Difficulty: 4.656542373906925e-10
Confirmations: 72
Chainwork: 00000000000000000000000000000000000000000000000000000000000010fa
Bits: 207fffff