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: 2070
Hash: 0f6167f16faadfe540f1b0f481de7b87de5bf9e203f69bbfeb3ad0cb6ca6d0bf
Previous block: 116e181ccf30a59dd674b098a6bec79ec7318e3a087cd99f5bb47278074a83b8
Next block: 5f1a95453b7d52c613ae486d5a42eb9ca8aff9a26afb051c7dba13c8df924e22
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964782
Stripped size: 218
Size: 254
Nonce: 2
Merkle root: 8aa29927b409a7a8bb7576b2c03b2858627b7187f236ddcda1b6f4317414e199
Median time: 1728964781
Difficulty: 4.656542373906925e-10
Confirmations: 174
Chainwork: 000000000000000000000000000000000000000000000000000000000000102e
Bits: 207fffff