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: 893
Hash: 2c1d1f503b9640ec0a6220136a6c231d0bb88f286478313a46c47f8354800514
Previous block: 1b8f4febe118b8dfc2af53585cdf491a9490ec5141cd04cb0a823ef4476b3427
Next block: 4082d7e1062f914006a6c338a25909a569357a0522dd52945f18cb3d9efa9f2d
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1707857817
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: be4473b48130833eac7181a5d94901fc18409342c1498f692607cdf56c292e0b
Median time: 1707857816
Difficulty: 4.656542373906925e-10
Confirmations: 1351
Chainwork: 00000000000000000000000000000000000000000000000000000000000006fc
Bits: 207fffff