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: 438
Hash: 59de32f08e9701c11c952773c8b7596e1325103c25a3e1553baca4c118184e6b
Previous block: 317bc5ae1de2b1e15711e2356ae27c8fc1b6bacc7878c2c8d99911ff49934d7c
Next block: 6181b6538c4cccd75042b76de1a3612cc8f9d547120a794c7b1fbc00389f3759
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864216
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 3f34d64d9f27a753f716f16e61560ee95ac9fc66ca210dd548ab72b1fcce8641
Median time: 1701864216
Difficulty: 4.656542373906925e-10
Confirmations: 1806
Chainwork: 000000000000000000000000000000000000000000000000000000000000036e
Bits: 207fffff