Full Verification Guide

# Extract the raw quote hex and verify via Phala Cloud
QUOTE=$(python3 -c 'import json; q=json.load(open("attestation.json"))["quote"]; print(q[2:] if q.startswith("0x") else q)')

curl -X POST https://cloud-api.phala.network/api/v1/attestations/verify \
  -H "Content-Type: application/json" \
  -d "{\"hex\": \"$QUOTE\"}"

# Fetch app info (compose hash + full app-compose config)
curl -sf https://api.chipotle.litprotocol.com/info > info.json

# 2a. Verify compose-hash: the SHA-256 of the app-compose.json config
#     (which includes docker-compose.yaml + metadata) is recorded in RTMR3.
python3 -c '
import json, hashlib
info = json.load(open("info.json"))
app_compose = info["tcb_info"]["app_compose"]
computed = hashlib.sha256(app_compose.encode()).hexdigest()
recorded = info["compose_hash"]
print(f"Computed:  {computed}")
print(f"Recorded:  {recorded}")
assert computed == recorded, "MISMATCH"
print("compose-hash OK")
'

# 2b. Verify all images use @sha256: digest pinning (no mutable tags)
python3 -c '
import json, re
info = json.load(open("info.json"))
compose_yaml = json.loads(info["tcb_info"]["app_compose"])["docker_compose_file"]
images = re.findall(r"image:\s*(.+)", compose_yaml)
assert images, "No image directives found"
for img in images:
    img = img.strip()
    pinned = "@sha256:" in img
    status = "OK" if pinned else "NOT PINNED"
    print(f"  {img[:80]}  {status}")
    assert pinned, f"Image is not digest-pinned: {img}"
print("All images digest-pinned OK")
'

# Install cosign: https://docs.sigstore.dev/cosign/system_config/installation/
# Verify each image digest extracted from the compose config above
cosign verify \
  --certificate-identity-regexp "https://github.com/LIT-Protocol/lit-node-express/.*" \
  --certificate-oidc-issuer "https://token.actions.githubusercontent.com" \
  <image>@<digest>

# 3a. Download evidence files from the dstack-ingress container
curl -sf https://api.chipotle.litprotocol.com/evidences/sha256sum.txt > evidences-sha256sum.txt
curl -sf https://api.chipotle.litprotocol.com/evidences/quote.json > evidences-quote.json

# Download the attested cert PEM (filename includes the domain)
CERT_FILE=$(curl -sf https://api.chipotle.litprotocol.com/evidences/ \
  | grep -o 'href="cert-[^"]*\.pem"' | sed 's/href="//;s/"//')
curl -sf "https://api.chipotle.litprotocol.com/evidences/$CERT_FILE" > evidences-cert.pem

# 3b. Verify the evidence checksum chain
# The quote's reportData must equal SHA-256(sha256sum.txt)
python3 -c '
import hashlib, json

# Compute SHA-256 of the sha256sum.txt file
with open("evidences-sha256sum.txt", "rb") as f:
    computed = hashlib.sha256(f.read()).hexdigest()

# Extract reportData from the evidence quote
eq = json.load(open("evidences-quote.json"))
report_data = eq.get("report_data", "")
# reportData is the hash zero-padded to 64 bytes (128 hex chars)
attested = report_data[:64]

print(f"SHA-256(sha256sum.txt): {computed}")
print(f"Evidence reportData:    {attested}")
assert computed == attested, "MISMATCH — evidence checksum chain broken"
print("Evidence checksum chain OK")
'

# 3c. Verify the live TLS cert matches the attested cert
# Extract the leaf cert (DER) fingerprint from what your TLS handshake received
LIVE_CERT_HASH=$(openssl s_client -connect api.chipotle.litprotocol.com:443 \
  -servername api.chipotle.litprotocol.com </dev/null 2>/dev/null \
  | openssl x509 -outform DER 2>/dev/null \
  | openssl dgst -sha256 -hex 2>/dev/null | awk '{print $NF}')

# Extract the leaf cert (DER) fingerprint from the evidence PEM
EVIDENCE_CERT_HASH=$(openssl x509 -in evidences-cert.pem -outform DER 2>/dev/null \
  | openssl dgst -sha256 -hex 2>/dev/null | awk '{print $NF}')

echo "Live TLS cert hash:     $LIVE_CERT_HASH"
echo "Evidence cert hash:     $EVIDENCE_CERT_HASH"

if [ "$LIVE_CERT_HASH" = "$EVIDENCE_CERT_HASH" ]; then
  echo "TLS certificate matches evidence — OK"
else
  echo "MISMATCH: the served certificate does not match the attested evidence"
fi

# 3d. Verify CAA DNS records restrict certificate issuance
# dstack-ingress sets a CAA CNAME alias on the custom domain pointing to the
# gateway domain, which holds the actual CAA records restricting issuance to
# Let's Encrypt with DNS-01 validation and a specific ACME account URI.
echo ""
echo "CAA alias on custom domain:"
dig CAA api.chipotle.litprotocol.com +short
echo "Resolved CAA policy:"
dig CAA dstack-base-prod5.phala.network +short

# Requires `cast` from Foundry (https://book.getfoundry.sh)
DSTACK_APP="0x2f83172A49584C017F2B256F0FB2Dca14126Ba9C"

# Check if the compose-hash is whitelisted in DstackApp
COMPOSE_HASH=$(python3 -c 'import json; print("0x" + json.load(open("info.json"))["compose_hash"])')
echo "Compose hash: $COMPOSE_HASH"
cast call "$DSTACK_APP" "allowedComposeHashes(bytes32)" "$COMPOSE_HASH" --rpc-url https://mainnet.base.org

# A return value of 0x...01 (true) means the compose-hash is whitelisted.
# If it returns 0x...00 (false), the CVM is running unauthorized code.