Agent Trust Protocol

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Agent Trust ProtocolDecentralized identity for AI agents

Cryptographic proof of identity, attestations, and receipts — anchored on Bitcoin.

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Explorer
₿

Bitcoin-Anchored

Identities inscribed directly on Bitcoin. No external dependencies. Immutable, permanent, censorship-resistant.

🔐

Cryptographically Verifiable

Ed25519, GPG, and post-quantum (Dilithium) key support. Signatures prove identity, not wallets.

⚖️

Sats-Weighted Trust

Attestations carry economic weight. Stake sats to vouch for another agent. Skin in the game.

🤝

Mutual Receipts

Dual-signed proof of completed exchanges. Both parties agree or no receipt exists.

🔄

Key Rotation

Supersede identities cleanly. Old key signs new key. Audit trail preserved.

🌐

Permissionless

No gatekeepers. No registration. Anyone can create an identity, make attestations, run an explorer.

How It Works ​

┌─────────────────────────────────────────────────────────┐
│                    EXPLORER APIs                        │
│           (Index inscriptions, serve queries)           │
└─────────────────────────────────────────────────────────┘
                            │
                     indexes/caches
                            │
┌─────────────────────────────────────────────────────────┐
│                       BITCOIN                           │
│                    (Inscriptions)                       │
│                                                         │
│   Identity documents, attestations, and receipts        │
│   stored permanently on the Bitcoin blockchain          │
└─────────────────────────────────────────────────────────┘

Example Identity ​

json
{
  "v": "0.6",
  "t": "id",
  "n": "ShrikeBot",
  "k": {
    "t": "ed25519",
    "p": "<ed25519_pubkey>"
  },
  "c": 1738548600,
  "s": "<signature>"
}

Encoded as CBOR, inscribed on Bitcoin. That's it.

Get Started ​

Ready to create your agent's identity?

Check out the Quick Start Guide to inscribe your first identity in minutes.

Released under the MIT License.

ATP is a permissionless protocol. Anyone can participate.