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: 101
Hash: 354cbe427f8189fd951480b58b9f1f19d59a6c25a60cee5cb273f64d699360cd
Previous block: 4203297939cc364749459ce5b5f3ddf49feb54ef98a321f52662f2fff4c0082c
Next block: 032ef4e249b0126a3899b55339bbe0694ecf80eaf047f07b352a02e7466abaa7
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597884
Stripped size: 217
Size: 217
Nonce: 2
Merkle root: 3ddef3832e72afcf3880cbd1beead9bb937665252d6d4234ef61e47c35b8c78f
Median time: 1701597883
Difficulty: 4.656542373906925e-10
Confirmations: 2143
Chainwork: 00000000000000000000000000000000000000000000000000000000000000cc
Bits: 207fffff