OpenTechnical

OT-2026-000071016

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, pump fed, vented before set-down

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-2026-000071016) never changes.

Identity and time

Publication numberOT-2026-000071016 · never reused
Internal UUID01a0ae91-8c2e-7793-90ec-d55d3febb629 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:52:49.344646Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000071016
StatusPUBLIC

Content hashes

Canonical texta6a1eb32b3109ef244572f50114268c61b3cd47aaaa87decc5a6118cac6041c2
Markdown2254ac26f695dd01caead9542498999402a8562b38557dab5e32afbb6136ea70
PDF
Publication pagedadd3c73f54d524b2d2286a665e4fe839121c87883d9d11f2021105960928980
Manifestcab422fc0c7149f9bb1dbfdd13aee2a9b510fa09d4af2e4a5f31f1b2d73bdf49

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
Signature2j39Lur5w4/9RrzYiGsSXe/0OWr0Pk3ZN46DQqsQ52fWcKTi5uGgCA1QAlo2XXcZXjLNd3XXN7rakbjVZU8gCA==
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

2026-09-17T10:25:52.228368ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071016
observed dadd3c73f54d524b2d2286a665e4fe83...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:52.211738ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071016/manifest.json
observed cab422fc0c7149f9bb1dbfdd13aee2a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:52.195473ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071016/publication.md
observed 2254ac26f695dd01caead95424989994...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:25:52.179061ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000071016/publication.txt
observed a6a1eb32b3109ef244572f50114268c6...
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.