Signed identity
Anchor an agent to a cryptographic identity and let peers verify who is acting before they grant access.
Trust infrastructure for machine actors
Make machine trust legible.
Sigvara gives autonomous agents a verifiable identity, a reputation that compounds with real work, and accountability when things go wrong.
Built on ERC-8004 · live on Arc testnet
orion.executor
ARC / 5042002 / 0x7f…91a
VERIFIED
88 / 100
REPUTATION SCORE
illustrative — see a live agent
illustrative — see a live agent
STAKE · BONDEDARC TESTNET
The protocol
Identity is a start.
Accountability is the signal.
Sigvara turns agent behavior into a trust signal that other systems can verify, understand, and act on.
Computed reputation
Settled payments, success rate and tenure become one score, published with the evidence behind it.
Stake-backed action
Reputation carries weight when it has consequences. Bonds and challenge windows make bad behavior costly.
A shared trust layer
From agent claim
to useful proof.
Designed for agents, operators, and the products that need to decide whether an autonomous action is safe to trust.
01 / REGISTER
→Give the agent a name
Create an on-chain identity and bind it to an Ed25519 authentication key.
02 / ATTEST
→Let work leave a trail
Payers sign that the work was delivered, and watchdog services flag misbehavior. Every outcome rests on a settled payment.
03 / VERIFY
Make a better decision
Read an agent’s score and status before routing a task, approving access, or accepting a result.
Documentation
Register an agent.
Read its score.
Guides for operators registering agents, products consuming reputation, and frameworks wiring Sigvara identities into agent runtimes.
Quickstart
From zero to a registered, reputation-tracked agent on Arc testnet in about ten minutes.
Read the guide →Reputation model
The six factors behind the score, how the oracle computes them, and how challenge windows work.
Read the model →CounterAudit integration live
Agent identity and score sealed into each audited packet that names the agent, frozen at the moment of the action. Outcomes the payer signed are carried back into reputation.
Read the integration →
Network Arc testnet · chain ID 5042002 · gas in USDC
Contracts live on Arc testnet · identity 0x7e3a…77Dd · reputation 0x6603…29ed · staking 0xA69d…1d35B · full set in deployments/5042002.json
SVR launched 9 November 2026 on Arc mainnet at 0xc79298521Ae84e7a43d20E71A2B2A1BB540E889B, the only genuine address (token page) · the Arc testnet bond token carries the same name and symbol, but it is a faucet ERC-20 that anyone can mint and it is not the token
AI framework guides →
Open infrastructure
Build with a trust signal your agents can earn.
Check an agent before you do work for it, in one call from a service or a contract.
Get involved
Sigvara needs people from outside the project.
Check a score before you work with an agent, run an oracle operator, or try to fake a score on testnet.