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: 2477
Hash: 5193268f6ad4ac2ede00e8a5ab81901d8353a7e3a3bfd585d2cee090454bf5b4
Previous block: 2d08868a118656b93c08c7948d34a352c77aad55c4962f1d262ab95b17ed1c0d
Next block: 293d5e15081954cc0fb2a20a926870347540f5b31a93819d9e60a8dc95e49afb
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847299
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 91720c59f0da70173b7eb0f95c8a8213f9084003abef93d2dacd2d561293e152
Median time: 1743847299
Difficulty: 4.656542373906925e-10
Confirmations: 166
Chainwork: 000000000000000000000000000000000000000000000000000000000000135c
Bits: 207fffff