Infrastructure · Primitives
Sign
Attest to authorship or agreement
Definition
Mechanism
The Act of attaching a verifiable Identity proof to an Artifact, asserting authorship, approval, or agreement. Unlike a raw Signal, a Sign action creates a link between the entity and the data that a third party can verify without the entity's cooperation. Used to validate contracts or authorize actions.
Risks
Failure modes
Legitimate retraction
a signature is permanent, so a signer who changes their mind cannot unsign.
Brittle integrity
a typo fix invalidates the signature along with the substantive change.
Legal gap
technical non-repudiation is not legal non-repudiation, which has separate requirements.
Relationships
Builds on
Accepts
Immutable data unit
Composes with
Root primitive for state modification
Used by
References
Immutable append-only log of agent actions for compliance and debugging
Binding agreement between parties
Signed, clause-specific rejection evidence
Composes with
Society
Acceptance of bid and contract creation