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: 61
Hash: 71ae9e8885b33fe2d885f7906296e1ce18d7522701c531361577a79eda2acab9
Previous block: 631c42e9f8a63810667d93c34a29eca238463ea94106ce1fc50034322a34ec74
Next block: 2f3b553704cced3126043c70add6e097f07f30485d8c3bed005378bdf438f046
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597877
Stripped size: 217
Size: 217
Nonce: 0
Merkle root: b549a24f0f70ab2630cfd02f2b3c2a2e7f2468fc7616894e18ca7926f7fb77f2
Median time: 1701597877
Difficulty: 4.656542373906925e-10
Confirmations: 2183
Chainwork: 000000000000000000000000000000000000000000000000000000000000007c
Bits: 207fffff