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: 1650
Hash: 3c75075386ff2ba40d351cc32773a488cfb1e0b2c1b0afcfc9fc4b1f08ef0064
Previous block: 42d038e2bac066ba90dc7b0718a06a4b83843af3fdd37e96a04daaf8952ed946
Next block: 32b1b0ec6e944d1481e0506947bf8345536a1e6e6a007c5dcf966310e31bdcf4
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159198
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4c458436599636568ee6d1a0c7bfe72ef66b6571092c799f302cb6cade86ca4e
Median time: 1719159197
Difficulty: 4.656542373906925e-10
Confirmations: 594
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ce6
Bits: 207fffff