NFT Provenance Hash Generator

Dead Simple python script to generate an SHA256 Provenance Hash for an NFT series. This assumes your images are named in sequence, 0.png, 1.png, etc. (gif, jpg etc. work as well). Should be easy to hack as needed. This repo also contains varification scrtipts in javascript and ruby in /verification.

To create the hashes:

1. Edit the following vars:

imgCount     = 10             # <-- How many images are there?
outputFolder = "../renders"   # <-- Where are they?
fmt          = "png"          # <-- What format / file extension?

2. Then fire away..

python3 provenance_hash.py

Output will be a series of text files in your outputFolder:

• provenance_hash.txt - containing the 'final proof hash'
• provenance_record.csv - .csv file containing image names and sha-256 hashes in order
• provenance_str.txt - containing a concatenated string of the image hashes in order

Verification of hashes once created

Hashes can be verified by running any of the scripts in the verification folder. Place whichever script you want alongside the image set and the provenance_record.csv file and run.

# in ruby
⇒ ruby check_hashes.rb

✅: All the individual image hashes matched!
🖌️: Provenance Hash: 93e5b6f83de5866e22a1493736958c4eb9618a23ed6f6761d064f0b474db8cc1

# in javascript
⇒ node check_hashes.js

✅: All the individual image hashes matched!
🖌️: Provenance Hash: 93e5b6f83de5866e22a1493736958c4eb9618a23ed6f6761d064f0b474db8cc1

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Notes