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: 2373
Hash: 4e68130ce00c4ee807eab101695578553dbb93b09d96298dc939843546eef775
Previous block: 6790f50c8fbc4f1c14729f4ef150dcb88b37d22443b98183c8ba941a222b8170
Next block: 5511376bcf714c19dfedac83b4f2ee2962863b9b688aaa35d99d78864f7fa217
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847282
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 94ba64d266f1d535dc0f64e2d94048d46331d0c2933c6a68c222050cc7000080
Median time: 1743847281
Difficulty: 4.656542373906925e-10
Confirmations: 270
Chainwork: 000000000000000000000000000000000000000000000000000000000000128c
Bits: 207fffff