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: 2291
Hash: 277bcdc13c1391be598234ba8548f4ff2d42d247659912021273502402520eb0
Previous block: 635f81ae56126c82f5e5b848c3a48ab8f4c724cd6fed9a0d8a109f17507be691
Next block: 181b02276e85937fda9b5061585ea82d41f008e618075bde8f914995ff2bbfd9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847268
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 31b207929cdd0c4e20284550e61aa9cb4f0f762e281f5f17a8d080624497e4f1
Median time: 1743847268
Difficulty: 4.656542373906925e-10
Confirmations: 352
Chainwork: 00000000000000000000000000000000000000000000000000000000000011e8
Bits: 207fffff