OpenTechnical

OT-2026-000005572

Publication integrity record

Porous face vacuum gripper, four outlet manifold, plant vacuum fed, pressure verified, contact triggered

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000005572) never changes.

Identity and time

Publication numberOT-2026-000005572 · never reused
Internal UUID01a0a93d-aa5b-7847-ac0e-844bef95e7ff · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:03:05.952579Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005572
StatusPUBLIC

Content hashes

Canonical textfee7d0905c7f06ec6daab3d471aae411708ddc0f0c13accf1098c3f7a26fdde1
Markdown60daadd0000e7aa054e060b1154d0dbf99d6fe390dc224169408f9ac58591c5f
PDF
Publication pagefb2a1a4ed190503688107a1d57a73ea42a62488a5631a4da44ce79a8a0a86407
Manifestb0a00fce6d616fd231b40941c0c25753aa2c9e48ea5cdbf1f6b8c650cd079e64

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureuFfrHMlCv/BarmLxpovlIWd+HeYYHztlmnxR8Hj72Qqs0jTNnORn/Orc+xz4fgPGfFw3b2vccnK6NypowzQ+Dg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:10:25.395884ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005572
observed fb2a1a4ed190503688107a1d57a73ea4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:25.381075ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005572/manifest.json
observed b0a00fce6d616fd231b40941c0c25753...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:25.239386ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005572/publication.md
observed 60daadd0000e7aa054e060b1154d0dbf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:10:25.224598ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005572/publication.txt
observed fee7d0905c7f06ec6daab3d471aae411...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.