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: 847
Hash: 3c2fefcd8e79291df7881f7bd1a91193162143381a5ecddc37895e269a520895
Previous block: 4dae78ee381d4be7a5a68d2db1de6be75307989b2a6c274e5b73db89557c83b7
Next block: 474cc0fd8f5745639113c2cd69f29f7f4e83fdc4c10e288a1a360936c464405b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857810
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 6856feff2d8273401320c8a6d6bfa2b6d7030c213fd50495a663253690c00ccc
Median time: 1707857809
Difficulty: 4.656542373906925e-10
Confirmations: 1397
Chainwork: 00000000000000000000000000000000000000000000000000000000000006a0
Bits: 207fffff