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: 2190
Hash: 4ad99c19ec85648911af0891473bb10d0de497dee23178acf5d1563ce28cb349
Previous block: 6bb993e818e6f1283e092957bf13104b991ef96775c44b5dc40d73318d62ec71
Next block: 5dcb2abb7d8b807e1ce7d89dab66ce9622c6c8fac56662128f131232b8eab0e7
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964802
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 93ee85c24180748428c476878ed0998a4faf0ebdfc612caafbcd731035efaae2
Median time: 1728964801
Difficulty: 4.656542373906925e-10
Confirmations: 54
Chainwork: 000000000000000000000000000000000000000000000000000000000000111e
Bits: 207fffff