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: 1015
Hash: 3a73e7361cf9534f8dbfdc27465ba799dc76429819f2ee53f36c6e894f1b2c20
Previous block: 10a92bd1e56808e5811fb43792fe9437deaf94b532ff83aeed02c0b04e63248f
Next block: 70a052192d93ef4dc1f8fe99d896eedcc677661cac639a49844aafaff47c7a12
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857838
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 9f1be16956b4c75a4c973bd5cb1aa907324fdf72907b0b3f8540575f15b48595
Median time: 1707857837
Difficulty: 4.656542373906925e-10
Confirmations: 1229
Chainwork: 00000000000000000000000000000000000000000000000000000000000007f0
Bits: 207fffff