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: 465
Hash: 69687ba47cb4445eac7aec0f4e678a2552bcb4aff94b85c9528f01fcef1eba7e
Previous block: 039024bef28601600065ee71bdebff3d602904ca5e6419d7739f4622759ca92b
Next block: 0793b694688da67d57e7a59917bfd2a774bbcb368310a4041472408b49d29146
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864221
Stripped size: 218
Size: 254
Nonce: 3
Merkle root: a575d41b4ea3e6cc293f02dee0790b4545c4f7fe2dda1dbacb59a02917a4146b
Median time: 1701864220
Difficulty: 4.656542373906925e-10
Confirmations: 1779
Chainwork: 00000000000000000000000000000000000000000000000000000000000003a4
Bits: 207fffff