OpenChainGraph Suite · ART-147 · wave 27

MCP Server Identity Attestation Validator

Validate a new-spec MCP server identity document: subject, issuer, serverInfo, well-known path (/.well-known/mcp-server-identity), and attestation reference. Zero network.

New MCP SpecServer IdentityRFC 9728Zero PIIW3C VC §13.11

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Scope

Root node of the mcp-server-governance-conformance chain (art-147→148→149). Validates a new-spec MCP server identity document: subject/issuer claims, serverInfo, well-known path /.well-known/mcp-server-identity, and attestation reference.

Presets

Identity Document Inputs

identity.subject (DID of the MCP server)

identity.issuer (DID of the issuing registry)

identity.serverInfo.name

identity.serverInfo.version

identity.attestation.ref (optional)

well_known_path (must be /.well-known/mcp-server-identity)

Signature Verification

Signature valid

The identity document cryptographic signature has been verified by the caller

Result

Execution Hash & §4 Artifact

SHA-256 execution hash (JCS canonical — RFC 8785):