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btc-timestamp-document's Introduction

Bitcoin timestamp document

Creates a bitcoin zero value transaction with metadata. The metadata contains document hash and author name.

How to run:

python3 stamp.py \
  --private-key=925hizLyDqen4gsCFeCXFWLXPC7BGQRR4ngA76Usjgb6ABiz59j \
  --file=picture.png \
  --name="yulia tsareva" \
  --network=testnet

QR code for tx '6f873f255d6649daf3d8f83b454ff59793c4c46db631485d6f2c4f53d17ffc56' was saved to file 6f873.png

drawing

To decrypt data stored in the transaction:

  1. Scan received QR code
  2. Open the link. E.g. https://www.blockchain.com/en/btc-testnet/tx/6f873f255d6649daf3d8f83b454ff59793c4c46db631485d6f2c4f53d17ffc56
  3. Find Outputs section
  4. Get Pkscript hex-string
  5. Run decrypt script:
python3 decrypt.py \
  --pkscript cf89a9f87fe17438bfc10b98c40d6d590948df0a0e943555fda992171d60376d79756c69612074736172657661

Document hash: cf89a9f87fe17438bfc10b98c40d6d590948df0a0e943555fda992171d60376d
Author name: yulia tsareva
  1. Pay attention to the "Received Time" field (2022-03-19 14:30) and status ("Confirmed" is expected)

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