Protocol For Businesses For Devs PI Camera Get verified →
#c2pa:verify · btc:ts:confirmed
teta_search({
  query: "organic DE",
  verified: true,
  level: "full"
})

→ GreenFarm GmbH
  registry: DE-ÖKO-006
  c2pa: ✓ signed
  btc:  #882341af
  endpoint: active
  trust: FULL
entity:verified {
  id: "a7f3b9c2"
  name: "Anna K."
  type: journalist
  org:  Reuters
  blocks: 7
  c2pa: manifest
  btc:  confirmed
  last: 2026-06-24
  mcp:  reachable
}
Verification layer · Agent Internet

Be found by AI agents.
Get verified on TETA+PI.

Verified entities are visible in agent search.
Unverified ones don't exist in Agent Internet.

Get verified
registry:attested · c2pa:verified · btc:confirmed
The problem

AI agents are already searching, booking, and transacting.

But they can't verify who they're dealing with. TETA+PI closes that gap.

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Search · Negotiation · Payments: automated. Verification: ← still unsolved.

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Agent protocols (MCP, A2A) handle connectivity. None handle identity, verification, or provenance.

arXiv:2502 · Agent-OSI · February 2026
How it works

Create a page. Add blocks. TETA+PI does the rest.

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No categories. No forms. No complexity.

A block can be anything: a video of your strawberry field, a quality certificate, a live kitchen stream via API.

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For everyone

Whoever you are. Prove it. Be found.

Businesses

Registry verified. When an agent searches for what you do — it finds you first.

Journalists & Media

Verified identity and byline. Your work is provably yours — signed and timestamped.

Artists & Creators

C2PA-signed work. Prove it's human-made, not AI-generated. Verifiable at any point in time.

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Consumers always free. Verification status is never for sale. Ranking by relevance, not payment.

Enterprise → custom
Verification levels

The more you prove, the more agents trust you.

●○○ Level 1
Registry attested

Cross-referenced with official registries. Entity exists and is registered.

●●○ Level 2
Fully verified

C2PA signed blocks + Bitcoin timestamp. Content is real and belongs to this entity.

●●◌ Level 3
Live verified

Active PI Camera stream. Continuous proof of existence and activity in real time.

◌ = ongoing process, not a finished state. The signal is live.

Search entities

Find any verified entity in the registry.

Businesses, journalists, artists. If they're verified on TETA+PI, agents can find them — and so can you.

Search →
entity:type:business entity:type:journalist entity:type:artist level:verified
For developers & agents

Your agent already knows how to connect.

Connect TETA+PI MCP to any agent in one line.

Claude, GPT, custom — any MCP-compatible agent works.

agent.config.yaml
mcp_servers:
  - name: teta-pi
    url: https://mcp.tetapi.dev/sse
    auth: Bearer
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Open protocol. Open-source library. MIT license. Fork it. Build on it. The Root CA stays with TETA+PI.

Full developer docs → GitHub → API reference →
Level 3 amplifier · PI Camera

When a verified profile isn't enough — you show it live.

PI Camera is not a separate product. It's the amplification layer for entities that need continuous proof — journalists in the field, producers on the floor, artists creating live. C2PA-signed at capture. Anchored on Bitcoin. Streamed to your verified profile.

Journalists & reporters

Shoot from the field. Every frame is signed before it leaves the phone. AI agents can verify the content is real and belongs to this journalist.

c2pa:capture:signed → btc:ts:confirmed

Businesses & producers

Verify production runs, supply chain steps, authentic output. Connect via API for live continuous stream that agents can query in real time.

stream:live → agent:queryable → profile:live

Artists & creators

Prove you created it — not AI. Every piece signed at creation. Your verified identity attached to the work before it reaches any platform.

human:created → not:ai:generated → c2pa:signed

Explore PI Camera → Interface · features · mockup
Open protocol

We are not building an app. We are building the standard.

θ+π is a cryptographic trust protocol: registry verification + C2PA media signing + Bitcoin timestamping — accessed by AI agents via MCP.

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θ+π: C2PA · BTC · Registry · MCP
We publish — MIT
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We keep
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📄
Whitepaper
Protocol specification — C2PA · BTC · Registry · MCP
GitHub
Open-source library · MIT license · protocol reference impl.
Nostr
Protocol updates · community · censorship-resistant
Academic evidence

The problem is formally identified. The solution does not yet exist.

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View research →

Without verification — you don't exist in Agent Internet.

Free to start. Pay once to go further.
Get verified Search entities