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: 175
Hash: 318c6ac35ea5356fa268917ecb2ff6b3772f11dfa6d10d0e7d1177f5f3d8b27c
Previous block: 0bf7b1b4d3f79fb451ebec7e7d2b304893b349f030cae8226eecb5c69b91f642
Next block: 155f987d4476d6da25547c5f5f20fba750e58e4ba1a7d6443b3f2adb3a1064b8
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597896
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: 0c64a9fa882492edabb02f398e4b24bb839a7ecf19aae643b473059e67d95a01
Median time: 1701597896
Difficulty: 4.656542373906925e-10
Confirmations: 2069
Chainwork: 0000000000000000000000000000000000000000000000000000000000000160
Bits: 207fffff