{
    "network": "pulsar/astrina.io",
    "algo": "ed25519",
    "public_key_hex": "ca2335d04bdf2b5eb20628febb173c68a39f3da8e50e2fe39cdc72bbf4fbd786",
    "purpose": "Verify Pulsar proofs of observation (the \"signature\" over the \"canonical\" statement returned by the pulsar_observe MCP tool).",
    "verify": "ed25519_verify(public_key_hex, signature, canonical). The canonical string is compact JSON of the statement with keys sorted ascending; it is returned verbatim by pulsar_observe.",
    "mcp": "https://astrina.io/mcp"
}