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: 733
Hash: 58d2a982f12f67d7381121f75e5d310e63a9fcc88366b15c933651652dfc34d3
Previous block: 748373dc7e99796dc5ddd6f030fbcc7740ef9eab4d5720a991e19b11c36d5d00
Next block: 053cc3fe585733d8d655f8a57c55b76bb9dfff4a1122574deb40b15005004076
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1701864266
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 4f506da2cc46e49db1b8c732341f867e958bb2c8ee814e3df2507bd0ebf97929
Median time: 1701864265
Difficulty: 4.656542373906925e-10
Confirmations: 1511
Chainwork: 00000000000000000000000000000000000000000000000000000000000005bc
Bits: 207fffff