live attestation
The receipt itself.
This page was generated when the server was deployed. Every field is real — the substrate executed real code, the substrate identity is signed by a class key anchored to the public keylist, the outer envelope is signed by the operator's key, and the cost is the actual cost of the wall-clock execution.
✦ SECURITAS · STABILITAS · SIGNUM ✦
CERTIFICATE No.
CE01C3BA2A784505
issued 2026-05-27T09:46:24Z
workload sha256:66af2700...45ee
output sha256:87a6e77e...b0a5
cost $0.000018
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substrate local-docker-v0
schema darwin.cloud/evidence/local-docker/v1
sub-signer dac-class-local-docker-v0-ca698355dcb631e3
value-added
✓cost cap$0.000018 / $0.1000
→routedpick_by_cost (1 picked from 1 eligible)
✓identityanchored to public keylist
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✓ ATTESTATION SIGNED
by dac-local-d1bf7cad25875cee
schema darwin.cloud/agenticcloud/attestation/v0.2
verify it
Three commands. No trust required.
Anyone, anywhere, anytime can verify this attestation. The verification path is open. The keylist is public. The substrate identity signature is over the canonical execution payload. Don't trust this page — verify it.
1
Fetch the public substrate keylist.
curl https://darwin-agentic-cloud.fly.dev/.well-known/substrate-keys.json
2
Confirm the substrate signer's public key is present and active.
look up signer_key_id: dac-class-local-docker-v0-ca698355dcb631e3
3
Verify the signature against the canonical signed payload.
darwin verify ./attestation.json
try it yourself
Download the attestation. Verify locally.
attestation.json
The exact signed v0.2 attestation rendered above. Verify with
darwin verify ./attestation.json.references
The full schema.
v0.2 attestations conform to a public JSON Schema (Draft 07). Anyone implementing a verifier can validate the structural shape before cryptographic verification.