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: 2156
Hash: 50908bf3ae354371b3a58ca59b9db242e8f1c285a42877562d1a4fe7afc60339
Previous block: 0e79e630c1926fede5e4783bf8a96f3d26d461ddc6ed98f9bd94f8ac89885539
Next block: 22c66d080f094d3f10517812f7d905f15246bf881567394fed2bbe5f89c02d73
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1728964796
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: f9f79355a6e82b9d90586d71c4d88a345c66097898108030e76747b62741d0f2
Median time: 1728964795
Difficulty: 4.656542373906925e-10
Confirmations: 88
Chainwork: 00000000000000000000000000000000000000000000000000000000000010da
Bits: 207fffff