chainId only tells the service which EAS chain to format the delegated attestation for, so the result could be submitted onchain later. Nothing here touches a blockchain unless you choose to submit the result yourself — the call above just returns a signed result.
What a matching signature proves. Checking the attester address proves the result was signed by a key Astral controls. It does not, on its own, prove the result was produced inside an independently attested TEE enclave: Astral has run the service on real TEE hardware in test deployments but does not currently fund continuous attested operation. Treat the staging signer as “Astral’s staging key,” not as a hardware-attestation guarantee. To evaluate against real TEEs, reach out at contact@astral.global.
All attestations from the staging service are signed by the attester address above. To verify a result came from Astral’s staging environment:
require(attestation.attester == 0x590fdb53ed3f0B52694876d42367192a5336700F, "Not from Astral staging");
const ASTRAL_STAGING_SIGNER = '0x590fdb53ed3f0B52694876d42367192a5336700F';// Verify the EAS attestation's attester field matches
Attestations are signed with the staging key — a different key will be used for production
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