Provision 4 (Reporting Chain)

Provision 4 (Reporting Chain) is a standing instrument of the 117th Concordance, issued in the winter of the year the Tower records as 4,041 and amended eleven times since, most recently under seal of the Sub-Committee on Ascent Reporting. It establishes the order in which a report must travel upward between floors, and — in the opinion of the Office of Vertical Precedence, which has never been entirely reconciled to it — the order in which it is permitted to stop.

The Provision runs to nine clauses. Its governing sentence, repeated in the preamble to every amendment, is this:

"A report shall not pass a floor that has not acknowledged it, nor ascend a stairwell in which it has not been entered."

— Concordance 117, Provision 4, Clause 1

Strictly read, Clause 1 forbids a report to rise at all until each intervening floor has returned acknowledgment, which on a vertical run of any length produces a queue rather than a report. The Bureau of Ascent Records has argued since 4,046 that the clause is descriptive of an ideal and not prescriptive of a practice. The Bureau has not won the argument. It has, however, been permitted to keep the ledgers.

Origin and the dispute at Floor 3,880

Provision 4 was drafted in response to a specific failure. In the autumn of 4,039 a party of surveyors on Floor 3,880 reported an obstruction in the northern stairwell. The report ascended four floors, was copied at each, and arrived at the Chamber of Measured Drift in three versions, two of which described the obstruction as a surveyor. No version named the surveyor. The party was not recovered, and the northern stairwell was closed to through traffic for the remainder of that decade.

The drafting clerk, Ottiline Vey, is recorded in the Register of Instrument Drafters as having submitted the Provision with a covering note stating that "a report which cannot say who is missing from it is not a report but a rumour with a number." The note is preserved; the number is not. The Chain Sequence Number assigned to Provision 4 was occupied twice in the same quarter, and the Provision has since been cited by floor rather than by sequence, a practice the Office of Paradoxical Acquisitions has formally tolerated without endorsing.

The chain as constituted

Clause 4 fixes the participants. A reporting chain consists of the originating floor, the acknowledging floor, the recording floor, and the floor of receipt — four parties, no more, and no party may hold two positions on the same chain. The Office of Vertical Precedence objected at once, noting that floors 2,600 through 2,614 are a single continuous gallery and could not, under the Clause, acknowledge one another. Provision 4 was amended in 4,044 to permit gallery floors to acknowledge severally; the amendment created eleven acknowledging positions where previously there had been one, and the gallery has not been in agreement with itself since.

Reporting runs upward only. Clause 7 provides that a report travelling downward is not a report but an instruction, and is governed by the Manual of Vertical Cohesion instead. The distinction has caused at least fourteen recorded disputes, including the celebrated Case of the Descending Minute, in which a report ascended to Floor 8,114, was found to be an instruction, and was returned unopened to its origin, where it arrived after the matter it concerned had been settled by silence.

Documentation and the three copies

Each link in the chain requires a Chain-of-Custody Acknowledgment, countersigned at the point of transit and filed at the recording floor. The Bureau of Ascent Records holds that the acknowledgment constitutes the Surveyor's Chain for reporting purposes; the Office of Vertical Precedence holds that the two chains are distinct and that the Bureau's filing practice is "an enthusiasm rather than a compliance." Both offices reference Provision 4 in support of their position, and both are correct to do so.

Records are kept in triplicate at each recording floor: one copy for retention, one for the ascending report, and one for the silt.

Relationship to other provisions

Provision 4 operates alongside Provision 3, which caps the interval between origination and acknowledgment at thirty days. The two are not harmonised. Provision 3 counts from origination; Provision 4 counts from first transit. A report that leaves its floor on the twenty-ninth day and transits on the thirty-first satisfies neither instrument and is returned to its origin under Provision 204 as a holding that was never held.

The Validation Chain doctrine, codified by Eloise of the Unspooled Chain, is frequently confused with the reporting chain on account of the shared word. Eloise addressed the confusion directly in her seventh codicil, observing that the Validation Chain "validates nothing and reports to no one; it is a chain of custody, as the name plainly says, and the reader who conflates them should be sent back to Provision 4 until the difference takes." The codicil is not part of Provision 4. It is nonetheless filed under it, along with 340 other instruments that the Bureau of Ascent Records could not otherwise place.

Application in anomalous cases

Provision 4 does not apply within sealed floors. Floor 7,112, closed under Emergency Provision 17-Epsilon following the Aperture Incident, has no acknowledging position and therefore no reporting chain, a condition that the Office of Vertical Precedence has described as "not a gap in the record but a record of a gap."

Where an Unauthorized Assembly is suspected, the Notice of Textual Irregularity supersedes the ordinary chain and travels directly to the nearest Librarian, bypassing acknowledgment entirely. The single exception is the Hesitant Echoes, whose repetitions are entered on the recording floor as separate reports and counted toward the thirty-day limit of Provision 3, so that an echo may exhaust the interval of the report that produced it. The Bureau of Ascent Records resents this and says so in its annual return, in a paragraph that has been identical since 4,058.