Temporal Cataloguing

Temporal Cataloguing is the branch of archival practice concerned with holdings whose contents, provenance, or physical extent are distributed across more than one moment. It is distinguished from ordinary cataloguing by the requirement that a record remain accurate not only at the hour it is written but at every hour it is later consulted, a condition the Fifth Concordance describes as "the unreasonable durability of true statements" (Fifth Concordance, Preamble 3). The discipline is administered principally by the Temporal Cataloguing Division, which catalogues Type-A holdings exclusively and shares jurisdiction over Type 1-C materials with the Subbureau of Temporal Reconciliation.

Temporal Cataloguing should not be confused with cataloguing performed quickly, nor with the work of the Bureau of Anachronistic Cataloguing, which proceeds at ordinary speed and merely arrives late.

Scope and governing instruments

The standard framework for the identification and administrative processing of temporal irregularities is the Temporal Anomalies, formally designated Concordance 119, Annex gamma. Its longer companion, Volume IV: Temporal Anomalies, sets out containment procedures for phenomena exhibiting non-standard temporal signatures and is consulted chiefly by those who have already encountered one.

Where a cataloguing guild or independent archivist identifies a divergence, the harmonization process begins upon receipt of a Temporal Stability Docket, completed in triplicate and lodged with the nearest subbureau window. Dockets are received at all hours. The windows are open from the second bell to the ninth.

Measurements are taken under the Cataloguing Standards, administered by the Chronometric Standards Office, and standardized against Tower Year and the Tower Standard Chronology. Records of Fifth Chronology provenance are catalogued under separate cover and are not to be shelved beside their own earlier editions.

The Kael pattern

The Division's most cited precedent concerns Senior Archivist Kael, whose subjective experience of the hours between the seventh and ninth bells of a winter on Floor 3,144 was found to differ from the Chronometric Standards Office's reckoning by a factor of nine. Kael maintained that no time had passed at all and that the bells had rung in error. The Division declined to resolve the question, classifying the matter instead as a Type-Kael Dilatory Pattern — the only taxonomic category in the series named for a living officer, a distinction Kael has twice petitioned to have removed and once petitioned to have extended to a junior colleague.

The parallel phenomenon observed during Direct Cataloguing, in which a cataloguer's working hours contract or dilate without warning, is recorded as Selvage's Echo and is treated as an occupational hazard rather than an anomaly. Cataloguers experiencing an Echo are asked to note the discrepancy in the margin and continue.

Instruments and the Registrar Corps

Because a holding may decay measurably between the moment it is described and the moment the description is filed, the Registrar Corps employs the Chronostatic Platen to arrest temporal decay during measurement and cataloguing. The Platen is heavy, requires two registrars to seat, and is not to be left engaged overnight; three holdings on Floor 811 were catalogued in 6,402 and have not aged since, to the visible annoyance of the Division of Temporal Consistency.

Anchoring of longer sequences is governed by Temporal Anchoring practice, which fixes a reference point and an agreed description of that reference point, and forbids the revision of either afterwards. The Temporal Architect holds authority over anchor placement and has not, in living memory, placed one.

Points of disagreement

The Division of Temporal Consistency maintains, citing Concordance 119, Annex gamma, clause 6, that no record may describe a future state of a holding, on the ground that a description is itself an event and cannot precede the event it describes. Against this, the Report on Recursive Temporal Anomalies observes that Annex gamma was amended in 6,417 to permit exactly such descriptions and that the Division appears to be citing a recension it has not read since. The Division has not withdrawn the position. Both offices continue to issue guidance, neither has been reconciled, and Permissible Incompleteness is invoked by field cataloguers on both sides as cover for leaving the question open.

A lesser quarrel concerns Taxonomic Series 44.312.07, which defines the standard temporal series used in cataloguing but does not state what to do with a holding that occupies two series at once. The Procurement Cycle reportedly contains such a holding on Floor 5,502, which is indexed under both and has been requested by neither.

Practical notes

Cataloguers are reminded that the Chronostatic Platen must be signed out at the desk, not taken from the shelf, and that it does not need to be signed back in if it is returned to the shelf directly. Discrepancies arising from this arrangement are themselves cataloguable and are catalogued under Anachronistic Annexes.

"A record that is correct at one hour and incorrect at the next has not been catalogued. It has been observed."

— Temporal Anomalies, Annex gamma, clause 1

The clause is quoted at the head of every docket and is widely regarded, within the Division, as unhelpful.