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: 907
Hash: 0130853fc4517ee06901f525ae99fc5b106d87444a688272133a86adcf0dda8c
Previous block: 1c04cf1a91652fa8aa2c73f5a645aaf321637f92f5c95bf92a4789de1f252c7e
Next block: 3d5f06108b2f6994492ee850c4a2c5e97c97964ef2d709f16473cef2fa1cfe10
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857820
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 6184614f279ec48de5bec5614686366a0fa81dd40c1d5a8265803a81a02f0c99
Median time: 1707857819
Difficulty: 4.656542373906925e-10
Confirmations: 1337
Chainwork: 0000000000000000000000000000000000000000000000000000000000000718
Bits: 207fffff