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: 370
Hash: 66f95e82fee1e673b4fe9433be0f624fd9d7672f39961853e31b96559e3b8d11
Previous block: 1640812190323ad16f42b7bfdd9103ca48af19c4a7039f0704c43119e4b8a369
Next block: 4875e07a9dd6fbf90b3b8ec866f7af5b907ea416df5122b428c0c637094e5c79
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597929
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 787a313045664923071ef5a2754c42cc73271bc75a2aa660113c5dba0ec4620a
Median time: 1701597928
Difficulty: 4.656542373906925e-10
Confirmations: 1874
Chainwork: 00000000000000000000000000000000000000000000000000000000000002e6
Bits: 207fffff