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: 346
Hash: 7542190158a05c9d622d85642288a96cf909f11da7cd9fc2bc7cb428484964a2
Previous block: 47a50cef1eada1b0de3a2813c6e207fec2f0cde3d0617fa325a498798328dd6c
Next block: 07d47722959d6d423a74d7b43568043bcb5d706481b4300ab77b65e9d7434d59
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597925
Stripped size: 218
Size: 218
Nonce: 0
Merkle root: f6ed91d036eb8adf123bff75a41dba1f0becf75b022598b9590da7c4e5b0b45f
Median time: 1701597924
Difficulty: 4.656542373906925e-10
Confirmations: 1898
Chainwork: 00000000000000000000000000000000000000000000000000000000000002b6
Bits: 207fffff