Bitcoin: Transaction incorrect when reading a block from `blk*.dat` files

Error occurring when reading block data from blk*.dat files on Bitcoin

When attempting to read blocks from files stored in .dat format, users may encounter an error. This issue arises due to incorrect formatting of blockchain data within these files.

The problem occurs when read the first block (1,669,774) from testnet files hosted at [ ckstream.info/testnet/block/00000010001CEBD3E4F2Fe5F2E2CBBE35BA6457554D9E0EB100B6F91EAEEEE).

To resolve this issue, the file must be opened and read properly to ensure data extraction.

Troubleshooting steps:

• Verify file format: ensure that the files are in the .dat format as intended by blockstream. If the format is incorrect, it may lead to errors when attempting to read the block.

• Use Correct Block Reading Commands: the Blk*.dat file names indicate that each block should be read separately. To get a complete view of the blockchain, ensure you are using the correct command and processing steps.

Example Use Case:

To confirm the issue, Attempt Reading the First Block From Testnet Files Hosted at [ /Block/0000000010001CeBD3E4F2Fe5F2E2CBBE35BA645754D9E0E6EB100B6F91EAE):

`Bash

Blk*.dat | Blockview -Block 1 -JSON format

`

Conclusion:

In Conclusion, Incorrect Formatting of Blockchain Data within .dat Files Can Cause Issues When Attempting To Read Blocks. Verify the File Format, use Correct Command Processing Steps, and Ensure Accurate Handling of Each Block’s Data.

Recommendations:

• Always verify that .dat files are in the correct format for blockstream.

Use the Blk .dat file names as indicated in testnet files to process blocks accurately.

• Consult Official Blockstream Documentation or Support Resources If You Encounter Any Further Issues.