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: 843
Hash: 3eb7624bb5c9a5ade7414850327ce5df8ec91783dfe3503f85f7d066b1e64ef5
Previous block: 5e936aadf19f1cf1480470ac306e1817360099fe184052173e13c0676b07c717
Next block: 43adb6e1707405058864a622bfcdda7db8ca6c880e7376620b47fa7f37e21f3b
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857809
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 764dd98bdecdf4d188f3a16ffc30363459672df2a3465fd69988667d67834926
Median time: 1707857808
Difficulty: 4.656542373906925e-10
Confirmations: 1401
Chainwork: 0000000000000000000000000000000000000000000000000000000000000698
Bits: 207fffff