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: 83
Hash: 4ad912ec42cf197adac91d26438fa7d39ae1d081c3ad44a3f82fc0295b926898
Previous block: 034f8cf0a99375423499b2213843fd59abd04bc7983b27172f679d4852c6cfc0
Next block: 0bf8f165e3c402467a8b7a86e09d006eb020245de8f13abacf3bde1c01e0bdcf
Weight: 868
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701597881
Stripped size: 217
Size: 217
Nonce: 2
Merkle root: 098704ea555d7b592656ce7de7ade9ddaa3c2036e1d65d08f518003060c52e8c
Median time: 1701597880
Difficulty: 4.656542373906925e-10
Confirmations: 2161
Chainwork: 00000000000000000000000000000000000000000000000000000000000000a8
Bits: 207fffff