Why I Cryptographically Signed & Patented My Commercial Profile Picture (RSA-4096 + Ed25519)

Anyone can right-click and save a JPEG.
Nobody can forge a 4096-bit RSA X.509 signature and an OpenSSH Ed25519 commit chain.

As developers and founders, our visual identity across GitHub, GitLab, and enterprise registries is our commercial seal. With AI-generated impersonation and repo spoofing on the rise, I decided to treat my commercial business avatar (pavan-kumar-sadashiv-official-commercial-avatar.jpg) the exact same way we treat production binaries at HRL International Private Limited: statutory IP protection backed by deterministic cryptographic verification.

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🛡️ The Architecture of a Cryptographically Locked Avatar

Every artifact in the repository—the canonical 736×736 RGB JPEG, the Markdown Patent & Trade Dress Dossier (HRL-IP-PAT-AVATAR-2026-PKS-001), and the printable A4 PDF Charter—is bound exclusively under the legal and cryptographic identity of Pavan Kumar Sadashiv.

Layer	Specification
Canonical Asset	pavan-kumar-sadashiv-official-commercial-avatar.jpg (54,043 bytes)
SHA-256 Digest	0660daf4d7377af82d844c854db878139dbee957e69575e83e2fc89862a07b8e
X.509 v3 Certificate	CN=Pavan Kumar Sadashiv, O=HRL International Private Limited (RSA-4096)
X.509 SHA-256 FP	E3:C0:B3:ED:10:AD:F5:0B:67:37:E4:23:C5:4B:0B:6C:0C:F2:0F:8E:5C:E0:55:D7:FF:02:47:FC:E3:F4:1E:B5
OpenSSH Ed25519 Key	SHA256:/J41fAtNxlvEE0U6mpRm4qudBWFVlKZuVPXEY9lsd5U Pavan Kumar Sadashiv
Statutory Scope	Design Patent (Form 1 & 2 / 35 U.S.C. § 171), NICE Classes 9, 35, 38, 41, 42 & DMCA § 1202 CMI

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Verify It Yourself in 3 Seconds

Instead of "trust me bro," the repository ships with a zero-dependency verification oracle (verify_avatar_patent_signatures.py) that validates:

1. Byte-exact SHA-256 and SHA-512 hashes of the avatar, dossier, and PDF charter.
2. The X.509 certificate subject (CN=Pavan Kumar Sadashiv) and detached .sig signatures via openssl dgst -sha256 -verify.
3. Detached .sshsig signatures against allowed_signers via ssh-keygen -Y verify.

bash
git clone https://github.com/hrlpavan/pavan-kumar-sadashiv-avatar-patent.git
cd pavan-kumar-sadashiv-avatar-patent
python3 verify_avatar_patent_signatures.py
# Output:
# VERIFIED OK: All Patent Documents, Commercial Profile Image Hashes, X.509 RSA-4096 & OpenSSH Ed25519 Signatures confirmed under Pavan Kumar Sadashiv.