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: 39
Hash: 49e27b5c73cf5a3f236a6759df428825b2550348fbdb450896b03843972ee233
Previous block: 21dd5a1793791c512d052b7811c6ef952c5e5458ffff0780832689ad78592318
Next block: 5ebb1f43e2770b9647ae3699a84fbc715ae7bad43bc9b5a313f4868cbb87d209
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597874
Stripped size: 217
Size: 217
Nonce: 3
Merkle root: 9dca73fcbc8600e7eb3c862d32a825f89fb871296e90cd2e4eb30b7e80fd3106
Median time: 1701597873
Difficulty: 4.656542373906925e-10
Confirmations: 2205
Chainwork: 0000000000000000000000000000000000000000000000000000000000000050
Bits: 207fffff