Sigan / verify / HPDA-A99D

2026-07-28

Process replayActual recorded strokes

Loading the recording 0%

LineOrderRework

00:00

Your drawing rhythm becomes the beat, speed the pitch, pressure the dynamics. The same drawing always makes the same song.

SERIAL · SIGAN-HPDA-A99D✓ The drawing process was recorded and verified⟠ Device-signed & verified

Strokes

Sittings

Undo / redo

7 / 0

Saves

28.6/hour

Canvas rotations

Zoom in/out

Verify · sha256 4c6df8ed06d9b074…

⛓ Existed before 7/29/2026 — anchored in Bitcoin.ots proof

Time drawing

00:02:05

4 sittings, 75 strokes. Only this is time a human spent drawing.

Time not drawing

00:26:51

Time the file sat open with hands off.

Time drawing 7.2%Time not drawing 92.8%

When it was drawn

What this page states · not a verdict

Drawn in 75 strokes over 00:02:05, across 4 sittings. Whether external images were imported is not checked in this record (v0). The record alone allows it to be replayed from the beginning.

View habits

While drawing, the canvas was rotated 0 times, zoomed in 1 and out 0 times — traces of working at comfortable angles and scales, recorded as part of the working habit.

Forgery difficultyModerate44/100top 79% hardest to fake

To forge this process exactly, one would have to reproduce the pressure, timing, and tremor of all 75 strokes — one by one. This isn't a verdict; it reflects how dense the recorded signals are.

Signals from the hand

Pressure curvePressure not recorded (tablet driver)

Speed · accel0.5 px/ms

Tilt · azimuthn/a

Micro-tremor9.83 index

Rhythm · rest4 pauses

Action logundo 7 · redo 0 · device 0

Seal · linked artwork file

Hash chain

sha256

Sittings (segments)

4 segments · 75 strokes

Linked artwork file · hash match

83cc1c34.clipsha256 e82ab646bee486dd6ff0…60,414 KBIf the sha256 of your copy matches a value above, that file is one of the files sealed with this record.

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https://sigan.mmwo.io/verify/SIGAN-HPDA-A99D