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: 1649
Hash: 42d038e2bac066ba90dc7b0718a06a4b83843af3fdd37e96a04daaf8952ed946
Previous block: 68c8047a83a865910a5bc1f979a6a3b234bf9d8ad1e4302294afb034bb71b8d9
Next block: 3c75075386ff2ba40d351cc32773a488cfb1e0b2c1b0afcfc9fc4b1f08ef0064
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1719159198
Stripped size: 218
Size: 254
Nonce: 1
Merkle root: 51db6c0ddf645bf700bad06b73f4521a02a4fde1773d249410f72340828cfbaf
Median time: 1719159197
Difficulty: 4.656542373906925e-10
Confirmations: 595
Chainwork: 0000000000000000000000000000000000000000000000000000000000000ce4
Bits: 207fffff