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        "author": "Konstantinos Karasavvas",
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        "description": "=================\nblockchain-proofs\n=================\nImplementation for generating and validating blockchain proofs/receipts (for proof of existence). Currently it offers support only for Chainpoint v2 (<http://www.chainpoint.org/>) but it can be easily extended.\n\nNote that it also validates that the merkleRoot is properly stored in the blockchain (testnet or mainnet).\n\nIn the future the library may incorporate other approaches like OpenTimestamps (<https://github.com/opentimestamps>).\n\nInstallation\n------------\n``$ pip install blockchain-proofs``\n\nExample usage\n-------------\n\n``$ python``\n\n>>> from blockchain_proofs import ChainPointV2\n>>> leafs = ['a', 'b', 'c']\n>>> cp = ChainPointV2()\n>>> cp.add_leaf(leafs, True)\n>>> cp.make_tree()\n>>> cp.get_leaf_count()\n3\n>>> cp.get_merkle_root()\n'7075152d03a5cd92104887b476862778ec0c87be5c2fa1c0a90f87c49fad6eff'\n>>> cp.get_receipt(0, \"e8b4177a30c8af5dd5f33adbc530e8970b593af1001b322c289e60b4ce395e13\")\n{'type': 'ChainpointSHA256v2', 'targetHash': 'ca978112ca1bbdcafac231b39a23dc4da786eff8147c4e72b9807785afee48bb', 'anchors': [{'type': 'BTCOpReturn', 'sourceId': 'e8b4177a30c8af5dd5f33adbc530e8970b593af1001b322c289e60b4ce395e13'}], 'proof': [{'right': '3e23e8160039594a33894f6564e1b1348bbd7a0088d42c4acb73eeaed59c009d'}, {'right': '2e7d2c03a9507ae265ecf5b5356885a53393a2029d241394997265a1a25aefc6'}], '@context': 'https://w3id.org/chainpoint/v2', 'merkleRoot': '7075152d03a5cd92104887b476862778ec0c87be5c2fa1c0a90f87c49fad6eff'}",
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