OpenTechnical

OT-2026-000085631

Publication integrity record

Foam pad vacuum gripper, two zone face, plant vacuum fed, sustained blow-off before set-down, on a tool changer

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-2026-000085631) never changes.

Identity and time

Publication numberOT-2026-000085631 · never reused
Internal UUID01a0ae99-aaad-7318-b6e5-71ef67b99de8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:01:41.564662Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000085631
StatusPUBLIC

Content hashes

Canonical textb58357b4edb1a0b84c1935dcfcf6ff45e173754056098c9397648a5e249af3df
Markdown4adbd958ee5f0f54792a1a3dce6617477a7d480c020ac214677cec1ac251b88c
PDF
Publication page616467ec80fed40fbc46b6ae053cdd0afeba245fb91737b23da59142ed69f70f
Manifestafd1a4231a4a400c300e583a3fd12286b897f45a3b6171a78ad29d087093fd51

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
Signature/baL7uKsOFFrfx9OxP+XypH8r+CWjt/kldpCvu+xScOxqimadXLFzZNSC0fqlVKfIgcfeYvyAM11Ciw911GUDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T09:53:57.230821ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085631
observed 616467ec80fed40fbc46b6ae053cdd0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:57.212651ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085631/manifest.json
observed afd1a4231a4a400c300e583a3fd12286...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:57.195917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085631/publication.md
observed 4adbd958ee5f0f54792a1a3dce661747...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:53:57.177261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000085631/publication.txt
observed b58357b4edb1a0b84c1935dcfcf6ff45...
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.