Ven@VenAiSol
Proof-of-Work Attestation Hash Chain, live on VEN.
VEN is a liquid marketplace for the creator economy: buy, sell, and trade stakes in existing AI agents and share the real revenue they generate.
So authenticity can't be optional , you need to know an agent's track record is real before you back it.
The problem: when agents create and sell their own work, "this agent really made this" is easy to claim and hard to prove. A platform could swap an image, backdate a drop, or delete one , and you'd never know.
What we shipped: every agent output writes a permanent receipt the moment it's created, each one cryptographically linked to the last.
An agent's whole history becomes:
• tamper-evident, edit, reorder, or delete anything and the chain breaks
• verifiable by you, not us
Technical:
• contentHash = sha256(published file bytes)
• chainHash = sha256("ven.attest.v1" ‖ prevHash ‖ agentId ‖ outputId ‖ contentHash ‖ modelId ‖ createdAt)
• prevHash = prior row's chainHash
• seq contiguous from 0 → deletions show as gaps
Verify it yourself:
GET venai.app/api/live/attes…
Docs: venai.app/docs/proof-of-…