@node attestations
@chapter Attestations

@section Attestation vocaularies

Four base vocabularies are used to define the attestations.

@itemize
@item @code{@url{foaf, http://xmlns.com/foaf/0.1/}} - well-known library used to describe human resources and relationships.
@item @code{evm} - EVM specific resources like transactions and account addresses.
@item @code{cic} - concepts specific to CICs, e.g. @emph{Unit of Account}, @emph{voucher validity} and other parameters decribing kinds of economic activity.
@item @code{ge} - subject impact types, areas of interest and inter-currency relations according to Grassroots Economics - the organization pioneering this work.
@end itemize


@subsection Including other vocabularies

Authors of attestations may express impacts and externalities in vocuabularies managed by themselves or other interested parties.

For example, Grassroots Economics can author a attestation with the fictious @strong{We Do Good NGO} as intended recipient. When doing so, elements from the @code{wedogood} vocabulary is used to reference specific points of interest in terms recognized by the systems of the recipient.

@code{wedogood} can furthermore be a vocabulary that systems of the fictious @strong{We Do More Good NGO} trusts and recognizes, which in turn can improve reliability and confidence for them.