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: 268
Hash: 11f8e4d6bf82775763d3def40627477dcfb5eabb7d5600ad6739c446cb3388b0
Previous block: 2dd1cbc9233b285b786e748785e6432d9a2f87d8e0ffc33b9ebb0ed3424baeeb
Next block: 3397637122f096c0e4fd64d68eee8ab9d58c50084403371234c32fcdf0a9fbb2
Weight: 872
Versionhex: 30000003
Version: 805306371
Transactions:
Time: 1701597912
Stripped size: 218
Size: 218
Nonce: 1
Merkle root: 897c6efae1a0e9e0e05d96280558e0bd1ed9de913335c5cc60d8b120c08fcc33
Median time: 1701597911
Difficulty: 4.656542373906925e-10
Confirmations: 1976
Chainwork: 000000000000000000000000000000000000000000000000000000000000021a
Bits: 207fffff