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Fragment 20 of 72 · drawer 02

Seven-pass image arrival ledger

A verbal ledger of Adam7 ordering, written to distinguish sparse interlaced arrival from a sequence of resized previews.

Accession
MW-F-020
Representative period
Reconstructed PNG transfer
Drawer
Logs & traces
Certainty
high
MUSEUM OF WAITING / RECONSTRUCTED RECORD MW-F-020

Seven-pass image arrival ledger

Reconstructed PNG transfer

Observed surface

PASS 1 isolated samples establish colour and composition

PASS 2 additional columns narrow the uncertainty

PASS 3 the image remains coarse but recognisable

Implied procedure

PASS 4 broad structure is now distributed across the full frame

PASS 5 missing vertical intervals fill

PASS 6 missing horizontal intervals fill

Interpretive residue

PASS 7 remaining rows complete full resolution

No pass was a blurred thumbnail; each was a sparse selection of final pixels arranged to reveal the whole early.

INTERPRETIVE COPY DO NOT CITE AS A HISTORICAL ARTEFACT

Accountability record

Evidence beneath the reconstruction.

These institutional sources support the mechanism or historical practice interpreted above. They do not contain this reconstructed record, its wording, or its invented values.

  1. World Wide Web Consortium · 1996 PNG Specification: Interlaced data order Defines the seven-pass Adam7 pattern that lets a meaningful whole image appear before every pixel arrives. Open institutional record ↗