OpenTechnical

OT-2026-000012919

Publication integrity record

Two bellows cup vacuum gripper, two zone face, per zone isolation, two stage ejector, 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-2026-000012919) never changes.

Identity and time

Publication numberOT-2026-000012919 · never reused
Internal UUID01a0ae6d-5564-722b-8d50-a5a6ed764468 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012919
StatusPUBLIC

Content hashes

Canonical text2ed598a4f7c7436975bb160651a3fd7e1de5247e67e54c40ef7446bc4dfff872
Markdown5cc1d143debcde282009f2229931205798693bb2f7e9383c0439d6b129b3c035
PDF
Publication page4a48772729f810a6a4117f0ddf7d06cddb783e045e8fe93945f4b600736dca36
Manifest8f07f74cb6ad7695aff9845a8a194124cbc83e3a6f305c8ba291200b0ff073c1

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
SignatureNGtALJMMVEG1ahBb7sqHARGO7x6jGGzg8fSFSOtAy+P8r0Ho5uYYy0T9NQ5G0UxEcBTU1DHT1M0ugMmdngVRBA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T12:10:42.783395ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012919
observed 4a48772729f810a6a4117f0ddf7d06cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:42.763800ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012919/manifest.json
observed 8f07f74cb6ad7695aff9845a8a194124...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:42.744551ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012919/publication.md
observed 5cc1d143debcde282009f22299312057...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:42.727027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012919/publication.txt
observed 2ed598a4f7c7436975bb160651a3fd7e...
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.