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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 177
Hash: 0876cc773393ad301fa15fb89895fa26098566b10518820b3259b28a3098d7e8
Previous block: 155f987d4476d6da25547c5f5f20fba750e58e4ba1a7d6443b3f2adb3a1064b8
Next block: 3881b3fa39c19f67a3522a0507252716c3a2b602a2d87a21fe78ff01e1e52493
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597897
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: 8872defe58d5f1b9cceb71b39a47ae6007441de1d874d5f13ede6290f323ac15
Median time: 1701597896
Difficulty: 4.656542373906925e-10
Confirmations: 2067
Chainwork: 0000000000000000000000000000000000000000000000000000000000000164
Bits: 207fffff