OpenTechnical

OT-2026-000081490

Publication integrity record

Three bellows cup vacuum gripper, three outlet manifold, pump fed, supply line pressure sensor, vented after 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-2026-000081490) never changes.

Identity and time

Publication numberOT-2026-000081490 · never reused
Internal UUID01a0ae96-f375-7b1d-bc90-57b84de7563c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081490
StatusPUBLIC

Content hashes

Canonical text5492843641756d5d8b9aa76447914c5da6a4e9ffdc6da724d92b76ba8e11fbb0
Markdown2cb1e4c28c5f324c9123033b9db663591389c44d3e0016e75e7baac00f4291f3
PDF
Publication pagedbfd06ce4a7193100f73446994994583126007f4ab81a219bf3777273821f5ca
Manifestab4de4bae0020011eb443769cd6b10c0ed69cfdd05f780617d29d09bcebaf360

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
Signature1SLowc/jhHVuvhCe5d/m4MbapJfiCDxZF3Ln2Zb+Zj4+mKd2knrIpK6Xt13SDnBkYTjP83C3jqwBOHJbQXhcAg==
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

2026-09-17T10:01:39.578336ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081490
observed dbfd06ce4a7193100f73446994994583...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:39.560406ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081490/manifest.json
observed ab4de4bae0020011eb443769cd6b10c0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:39.541976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081490/publication.md
observed 2cb1e4c28c5f324c9123033b9db66359...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:39.524403ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081490/publication.txt
observed 5492843641756d5d8b9aa76447914c5d...
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.