Certification of Inferred Descent

The Certification of Inferred Descent is the formal act by which the Atrium of Unseen Lineages (Floor 407) confirms that a claimed line of descent exists, notwithstanding that no party to it can be produced, exhibited, or in most cases named. Certification does not create the descent; per the standing formula, it "declares a lineage that has already declined to be looked at." The distinction is not decorative. Uncertified descents may not be cited in proceedings, pledged as security, or entered against a holding; certified descents may, and frequently are.

Certificates are issued on vellum of the standard 44-gram weight, in triplicate, and one copy is retained by the Warden of Descent against the day the descent is challenged. That day arrives, on the Atrium's own reckoning, in roughly nine cases out of ten.

Origins and the Descent Protocols

Certification was an informal practice of the Atrium for the better part of two centuries before it was written down. Applicants would present a schedule of particulars — a chain of names, offices, or objects — and the Atrium would return it stamped, unstamped, or stamped with a qualification that no one could later interpret. The practice was regularised by the Descent Protocols, which fixed the certificate's form, its four classes, and the grounds on which it may be withheld.

The four classes are: direct, where the chain is unbroken but unobservable; collateral, where the chain branches and only one branch is certified at a time; suspended, where certification is granted but takes effect only on the occurrence of a named event; and provisional, a class created by Aris Threnody's Determination on Inferred Holdings and folded into the Protocol by amendment in the following session. Provisional certificates are the most numerous and the least trusted. They are printed on grey stock. The Atrium's porter, Hessa Vane, has asked twice that the grey stock be stored separately from the white, because they are indistinguishable by lamplight; the request is pending before the Iterative Chamber.

Procedure and the triangulation requirement

An application must specify the descent's terminus — the holding, office, or person from whom the line is claimed to run — and at least three independent indications of it. The indications need not be documents. Under Protocol 44.B.δ: The Triangulation of Inferred Harmonics, a descent may be established by the echo a claim produces when read aloud in three separate rooms of the Atrium and compared. Where the echoes agree on the terminus but disagree on the intermediate chain, the certificate is issued as direct and the intermediate chain is left blank, which is permitted and, since the 41st Vellum Descent, extremely common.

The Doctrine of Unilineal Descent requires that every certified line be single and unbroken. The Atrium has never resolved what "unbroken" means when the intermediate chain is blank. The Descent Oversight Committee holds that a blank chain is unbroken by default, on the reasoning that nothing has broken it. The Directorate of Descent holds that a blank chain cannot be shown to be unbroken, and has twice refused to countersign certificates issued on that basis — most recently in the winter of the year the Atrium's north stair was closed, when a batch of two hundred and six direct certificates was returned uncountersigned and had to be re-issued as collateral.

"A line of which nothing is known is not thereby a line of which something is wrong."

— Descent Oversight Committee, ruling of the 8th session, appended to the Descent Protocols as a note

Revocation and the Widow's Descent

Certificates are revocable. Revocation is retroactive to the date of issue, which means that acts performed under a certificate later revoked are treated as having been performed without one, and must be re-certified individually. The mechanism is cumbersome and has been used sparingly, but sparely is not never. The Widow's Descent of Floor 2,204, a Major Expedition, was reclassified after the fact as an inferred descent and its findings required re-certification in their entirety; the re-certification took four years and produced the Atrium's current backlog rules, under which no more than forty retroactive conversions may be opened in a single quarter.

Surviving holders of revoked certificates are not penalised. They are, however, entered in the Registry of Inferred Procedure, and the entry is not removed on re-certification; it is annotated. Some holders have objected that the annotation outlives the revocation. The Chamber of Unseen Cataloguers, which jointly with the Iterative Chamber reviews applications for inferred descent, has declined to order removals, observing in its 12th minute that the archive is not obliged to forget what it has already said.

Disputes between the Concordances

The Third Concordance provides that a certified descent is conclusive against all parties, while the Seventh Concordance, annex 4, provides that a certified descent is conclusive against all parties except the descent itself. The second provision was added at the instance of the Office of Lineal Correction and was, on the record, intended to allow a lineage to contest its own certification — an arrangement that presupposes the lineage can speak, and which the Office has never been asked to demonstrate. Practitioners cite whichever clause suits the matter in hand. The Atrium's clerk of certifications, Ovell Marrant, kept a private tally for eleven years and reported that the Seventh was cited in roughly two-thirds of contested matters and the Third in the remainder, with one matter in which both were cited by the same party on the same afternoon.

Proposals to reconcile the two clauses have been before the Vault of Unspoken Protocols since the 44th Vellum Descent, where they remain, unfavoured but not withdrawn.

Records

Certificates are numbered by the year of issue and the class. A certificate's number is not an identifier of the descent; several descents hold more than one certificate, and one descent on Floor 1,118 is widely believed to hold none, though the Atrium denies this. The Register of Certificates is kept in the Atrium's east range and may be consulted by any Librarian who signs the book at the desk. Signing the book does not confer a right to copy. The register's spine was rebound in the year of the north stair closure and the rebinding is two centimetres taller than the shelf, so the volume is now stored flat.