@craigsolomon
Founder, Fulcrum Enterprises — Building the Foundation for an AI Driven Future
Freelance work
2d ago · 5 min read · You modify one pixel in a 4K image. The file size barely changes. But run SHA-256 on both versions and you get completely different 64-character hashes. This isn't a bug. It's the cryptographic avalan
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May 4 · 3 min read · Verify Blockchain Timestamps with Python's verify-proof Package Your application receives a file and a JSON proof claiming the file was timestamped on a blockchain before a specific date. You need to verify that claim programmatically without trustin...
Join discussionApr 28 · 5 min read · Installing and Basic Usage The verify-proof package is available on PyPI and works entirely offline. It doesn't make network calls to validate blockchain transactions — instead, it performs cryptograp
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Apr 20 · 5 min read · A file's metadata can lie. EXIF timestamps get stripped. Creation dates change when copied. But a hash anchored to a blockchain can't be faked. Here's how to verify ProofLedger timestamps programmatic
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