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: 955
Hash: 2284f77f128f8776f171c708d8f6ce68de35e9f16243dedeea4e045829495c65
Previous block: 3dc1b5a67e55de91d67dcf9922003ccbb210946bd29253fe07278781a1ceeb3e
Next block: 6ddf5dcb70425ed9e37626fd4def3eec20ccf59ab4270acecd36c219247791aa
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857828
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 48c211bb502a94d51173d1d5f2c24e95540351a69aaa5da00097b797a453095d
Median time: 1707857827
Difficulty: 4.656542373906925e-10
Confirmations: 1289
Chainwork: 0000000000000000000000000000000000000000000000000000000000000778
Bits: 207fffff