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: 2616
Hash: 44afc7d2567074926b1f7feedd3d043d87bf39a7fb7ec49ca577775ddd7b2dc2
Previous block: 7dcf96b3a99336a95ba4503a5b4d02aa2df8faad5d1aa56cbea70d87b911a42a
Next block: 401f75f2543f7f42b18a276e309355fd4cb95b2007e27b8415e52426126f0ee5
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847323
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6fafcc1a725601ce1881c57757a4df3f0bf5bbbafee6f066b090e3ff2099ed6d
Median time: 1743847322
Difficulty: 4.656542373906925e-10
Confirmations: 27
Chainwork: 0000000000000000000000000000000000000000000000000000000000001472
Bits: 207fffff