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: 2550
Hash: 2a14f6c2f180d3cd841b0d0b8bafac1247332865a515ac322e8091226864857c
Previous block: 0f29a4a4388d8236c40bfefa54e8e505655cc303c9791267cb22b883e5419d92
Next block: 4f6652e7c8f925e3822ec39fcadb6457ff5a8d21e28f21363662cf3cf8cbbb90
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847312
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: 22b9448e42760da9e6348a559fd3ad3498b603cb5101be189de74f38cd6991ce
Median time: 1743847311
Difficulty: 4.656542373906925e-10
Confirmations: 93
Chainwork: 00000000000000000000000000000000000000000000000000000000000013ee
Bits: 207fffff