OpenTechnical

OT-2026-000072681

Publication integrity record

Three bellows cup vacuum gripper, three zone face, four outlet manifold, single stage ejector, supply line pressure sensor, pulsed 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-2026-000072681) never changes.

Identity and time

Publication numberOT-2026-000072681 · never reused
Internal UUID01a0ae92-89d9-7775-908e-1813dff5ba54 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072681
StatusPUBLIC

Content hashes

Canonical textb1415f863205b5a43dae46b1fd4f2aaf650062b824096fd06c1f8b8f35902ebf
Markdown7332a7271e3494af3e795136ddb96298b2b4294d3c4acf5067c951084581181f
PDF
Publication pagecf3fbfccad7439145ecd1370af09d2fe47ad21ba2cb019bf98f65286110ed5a5
Manifest7aea2f834e487e229fb202350e85faa09357b99a0b9d8f3446e768ce21bd53bd

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
SignatureiTi5aVs0SF8PPblDatN08CVaNn/0EiDeVtZs3JgmsM0LxW0KT0BP3KSTNEZcG2AE3+fhbj5s0zWTRn4JBZ0oCA==
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

2026-09-17T10:22:32.998803ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072681
observed cf3fbfccad7439145ecd1370af09d2fe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:32.983557ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072681/manifest.json
observed 7aea2f834e487e229fb202350e85faa0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:32.966450ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072681/publication.md
observed 7332a7271e3494af3e795136ddb96298...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:32.950153ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072681/publication.txt
observed b1415f863205b5a43dae46b1fd4f2aaf...
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.