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: 971
Hash: 16dd7f81cf24c5c03a6763b04895b3bb792d7c4697521ae53470321f23fa775b
Previous block: 1a7be575047f7388ce43cedd69bc2b7de5da53bdb4bffcd6db935e1743e2aaef
Next block: 72d24cd831b6813c434627975493afa7a442d6703fa34ec34e75720ba251de48
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857830
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 8532ec9f5e2e8e012bc20c5670fe9ec7176ba5250f86d450c3d008c6c40119e7
Median time: 1707857829
Difficulty: 4.656542373906925e-10
Confirmations: 1273
Chainwork: 0000000000000000000000000000000000000000000000000000000000000798
Bits: 207fffff