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.

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Enter a block height, e.g. 123, or the start of a bitcoin address, e.g. mxMfLjAez

Height: 2368
Hash: 6f06c22c2e766e2c91bd777679cda1fb33df0bd04f0d65e45cd91275e33bec4a
Previous block: 0936454c0d7471744d0ac62a46158ec57c4a73c5558270d7bc5d6e02980eeecb
Next block: 69b88840baea50505cfe98c0463b443d5a0d9b5556f982506de691ff5d20659f
Weight: 908
Versionhex: 20000000
Version: 536870912
Transactions:
Time: 1743847281
Stripped size: 218
Size: 254
Nonce: 0
Merkle root: 5258c416d3bf7dacf64aa5d413e7bc1f57021aecc594869867379f852c305a88
Median time: 1743847280
Difficulty: 4.656542373906925e-10
Confirmations: 275
Chainwork: 0000000000000000000000000000000000000000000000000000000000001282
Bits: 207fffff