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: 727
Hash: 2a8344df77d5069012ce65d34e22ade30e7e9211d03d6e092bb832ceb10e4fa8
Previous block: 6cc4ad790acfc836af4b900f22d56ebef3ff48f5a14c9274caebbd63d6575f8c
Next block: 2e0bd1bc801ac0543bab7157cbaab84b074fd777b70b6611fea3e414d797c1a9
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864265
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 081d7c8ea827a45e7c4c00e4d65f228ae6b00390b79c28df33c264a77cae22b3
Median time: 1701864264
Difficulty: 4.656542373906925e-10
Confirmations: 1517
Chainwork: 00000000000000000000000000000000000000000000000000000000000005b0
Bits: 207fffff