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It's the proof-of-thought that counts

Project description



A pure Python implementation of the blockcard protocol's proof-of-thought system for gift transactions. Read the full paper here.


Install the latest version from PyPI with pip install blockcard.


Generating the first block in a chain

python -m blockcard -g

Generating subsequent blocks in the chain:

python -m blockcard -g parent.blk

Displaying headers and metadata of a block:

python -m blockcard -d target.blk

(For longer messages you may want to pipe this into a pager like less)

Checking validity of blocks

Check current block

python -m blockcard -c target.blk

Check all blocks in chain recursively

python -m blockcard -C target.blk

(All .blk files should be stored in current working directory)


Starting a new chain

Displaying an existing .bkc file

Appending to an existing chain and checking blocks recursively

Project details

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Files for blockcard, version 0.1.1
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