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: 829
Hash: 15b20ca19e7822a84d19e147b704ae7e54e2e86d5eccfaf092d44a1286cb6282
Previous block: 2e45a156cfb4e02d6df78f2f4e9438ade2baea38d25eded8e16ede51d671415b
Next block: 7cf69fadbb5c17f6d130ddc6fd41a9cff2adcc20e87e07c12750fd8304a5be95
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857807
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 407a8fefbc274a89b03d57099a7f859aa1af522e8f999d486fa7796865e1a965
Median time: 1707857806
Difficulty: 4.656542373906925e-10
Confirmations: 1415
Chainwork: 000000000000000000000000000000000000000000000000000000000000067c
Bits: 207fffff