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wonghang / originstamp-proof

originstamp proof file

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originstamp-proof

It is a repository of storing the OriginStamp SHA256 hash and corresponding proof files of some of my important documents and source codes. There is also a python code originstamp-proof-to-address.py to compute everything independent of OriginStamp. Just in case OriginStamp goes bankrupt or disappears, a backup of all Bitcoin-transactions (and other cryptocurrency transactions) should be available somewhere on the Internet to prove the timestamp.

I want to prove to the world that such documents and source codes exist before a specific date. The reason for the proof is a complex legal and personal matter which I will not disclose now.

What is OriginStamp?

OriginStamp is a service provided by a Switzerland company to create a trusted timestamping service. It works by computing a SHA256 hash of a file and then use Merkle Tree to include it in a cryptocurrency transaction. Because compromising a blockchain-based ledger system is virtually impossible. The cryptocurrency transaction acts as a tamper-proof timestamp. For the technical details on computing the hash and the final bitcoin address, please refer to the guide provided by OriginStamp here or the file originstamp-proof-to-address.py.

Please note that OriginStamp supports several cryptocurrencies, and I only implemented Bitcoin in originstamp-proof-to-address.py. Other cryptocurrency-proof files are in the subdirectories.

Requirements

The python code requires bitcoinlib.

$ pip3 install -r requirements.txt

Usage

The basic usage is

$ python3 originstamp-proof-to-address.py (proof file) (file or hash to verify)

Unless an unwanted event happens, the original documents and the source codes will not be available to the public. Only their SHA256 (and proof files) are open. But, as an example to show what is going on, the file originstamp-proof-to-address.py itself is timestamped as an example:

$ python3 originstamp-proof-to-address.py originstamp-proof-to-address.py.xml originstamp-proof-to-address.py
All hashes are correct
Bitcoin address: 1CPjACYh4ZfK4rQNM9PRCS8GJdHKXX2QG7
https://www.blockchain.com/btc/address/1CPjACYh4ZfK4rQNM9PRCS8GJdHKXX2QG7
$

If I release those files to the public, one can compute all the hashes and Bitcoin addresses using a bash script as follow:

for i in /path/to/those/files/*
do
  python3 originstamp-proof-to-address.py $(echo $i | sed 's/^.*\/\(.*\)$/\1/').xml $i
done

and you should see the following output:

All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
All hashes are correct
Bitcoin address: 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
https://www.blockchain.com/btc/address/139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU

The code originstamp-proof-to-address.py is open source here, therefore the integrity of my code is self-evident. One can also check the integrity from OriginStamp.

What are the files?

SHA256 hash

File SHA256 hash Bitcoin address
originstamp-proof-to-address.py 68f5f784c76a6caaa236acfa7ec68fc7efa046a28dc82e8cd6acd5b0a04d80cd 1CPjACYh4ZfK4rQNM9PRCS8GJdHKXX2QG7
0cc7adf.py 0cc7adf4e66ea431326c62320548efa688a28e252f1d1907fedab419179f3b57 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
3a9582b.cu 3a9582b71f8d55aafe351bdaa75f162b1f26a0186f2d921d53da0d45a7ff8c26 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
4fa1122.bib 4fa1122cf54e3adccc3116dde49604f764c4ccc192aecec2eee3b918245d0955 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
5f4c789.mp4 5f4c7899f10da078f70b9766bd95f17def41b52d3a1a5983eb25ad888c4a798a 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
6b74576.cu 6b74576399d0c4783cf01ec1141511989583a9d5882474fa0879ffd742e92432 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
7d79fa7.py 7d79fa7dea881f242dcc651b82806b88ba14d7a57ffe32c54069442c0d097842 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
9b6702b.py 9b6702b36d843231b51488e919fac0549298521b926a3e3cbcbf65c2ccb3e7da 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
11e6bf3.cu 11e6bf3132f146d4486aa5e9f48ac0071d4b4e42fc2f5a8c55764123935a4cd0 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
15bee49.cu 15bee49c1c7cbb895c8b05c22e5349113bea7fded0121539dc3a3d140f3ac97f 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
022a805.tex 022a80562714d28a11ad5403bca48c3d64217fa04d82a68128c5fa381d69d1c5 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
724fc30.cu 724fc30f2df7aee30afbe3efb6f69aee9ff978560ad0333a2e36c5f7f14195bb 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
02418a7.py 02418a7ca35a944e616baace0c8e924b690205cfee225677f865a4c86cd7cd27 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
7708f54.py 7708f548486c5b041f2ab4e63d29bdc795cb3af67fbc0fce135ec25ef39fc28d 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
53471f7.mp4 53471f756aef98650d5f5a2da09624a435345881a9719340d434f2cff03f0b30 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
053801b.patch 053801b07c1c522f952be9229e539539d83392de598f7110e15894af308333f4 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
5787759.cu 5787759c55c59c89bb49caaa6e4bd1e6e948e26e88576d61b819b1ed08031e52 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
a7d1f16.bash a7d1f1622a253a6ce81956556d4c6c5825da3c6174c56e85d776c01aa45e59c2 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
a150d4d.cu a150d4d8606c9e23d0c3a92dbfac74ab551e41c9a585a0a4af5820743d4ed5f4 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
a17601c.cu a17601c458859834e187e51fb928b0dd8cb1ff4a93d16d59a70ece043019427a 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
b98e226.py b98e22663b3874b0bc3a720f7557585ec55a7ec25c60e233b3804e3154ddb96c 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
ca62966.cu ca62966c78799830abcda14744899bbae0095727422379aca776a2143246261c 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
d11805c.mp4 d11805c0275a8a425a1ac7456c3af2ed5b6919b660bb9dfe6b6be95635702181 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
da8f3f5.mp4 da8f3f584f3f4b557b9979b9fefe2a33fdb5f345fcf74f6cd7d8fa617c537d84 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
dd86049.cu dd8604920e88bd593bd8530112410ee5773c51127f77ccab504b9df69bcbca02 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
ea8ad56.cu ea8ad56f87e6add24deb449f1dfd00c1298ca387cb532b5ce85be9f5f185d542 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
ee6c712.py ee6c712cf206a12b1ddfeec3fadc1630712e4031fbce7c2a1f53db978860d7d2 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
f48ba61.py f48ba619802dcdca0beefa0d662e459127a891cc83d8a9d8fb73fddc60983312 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
f335444.cu f3354445f7e66ca2aa4352d55245ab0bca0c94cce6e4d8a5d988c0b2a99a20b0 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
original-name.txt 74d9144c88500436ce48b1229da42143b969f85fa35f8c7ccc7d9419c243652c 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU
trunk-11337.tar.gz e01bfd0d1c80b0a82b05878b39146401385f0984a246a81f039641f18475575e 139DGkJExFW29LAmG1MjyNuuAyMQD2BRTU

Corresponding Transaction (Bitcoin only)

File Transaction Timestamp (UTC)
originstamp-proof-to-address.py 9665d28ab70f9d9b75bcb014348331b44c907c91a225f316205d390b1890ff3e 2020-03-18 00:00
0cc7adf.py 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
3a9582b.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
4fa1122.bib 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
5f4c789.mp4 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
6b74576.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
7d79fa7.py 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
9b6702b.py 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
11e6bf3.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
15bee49.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
022a805.tex 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
724fc30.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
02418a7.py 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
7708f54.py 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
53471f7.mp4 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
053801b.patch 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
5787759.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
a7d1f16.bash 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
a150d4d.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
a17601c.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
b98e226.py 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
ca62966.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
d11805c.mp4 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
da8f3f5.mp4 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
dd86049.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
ea8ad56.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
ee6c712.py 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
f48ba61.py 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
f335444.cu 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
original-name.txt 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00
trunk-11337.tar.gz 2f26f595fab74519c94fb4044f7fe036c9bf2eac5b655f70f89e23e435e106c9 2020-04-01 00:00

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originstamp proof file

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