OpenTechnical

OT-2026-000074718

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, pump fed, supply line pressure sensor, vented 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-2026-000074718) never changes.

Identity and time

Publication numberOT-2026-000074718 · never reused
Internal UUID01a0ae93-ac2b-70e0-a27e-343ac15a9055 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:55:08.693295Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074718
StatusPUBLIC

Content hashes

Canonical textb0015409cb36d4834c8598cd76ed0187a2116ff10078ebc12ead0fed14cd514a
Markdown5de8b072b7115f99a87df001c9579e99a48d2f9aae7c3f437f19e3389b658c96
PDF
Publication pagec7630b3450c3f6bae1897b486e8370127057ae67eb69b67f7fbcdc89fb7412df
Manifest57526300cbe10ccbaf78fd36e916056d07cb0539267afc55e204e8a14a19b68e

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
Signature4DYJ4qxO8kzi59YRPqmPj5KzDgFcKhfOLw/zzUC4ACVd5TmPHb3KxyqmaDXJW966VCRFHo9kOV3BKjQjtR1FBg==
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

2026-09-17T10:18:18.891849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074718
observed c7630b3450c3f6bae1897b486e837012...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:18.872993ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074718/manifest.json
observed 57526300cbe10ccbaf78fd36e916056d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:18.854400ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074718/publication.md
observed 5de8b072b7115f99a87df001c9579e99...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:18:18.834269ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074718/publication.txt
observed b0015409cb36d4834c8598cd76ed0187...
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.