OpenTechnical

OT-2026-000091812

Publication integrity record

Foam pad vacuum gripper, three zone face, four outlet manifold, pump fed, pressure sensor per zone, sustained blow-off 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-2026-000091812) never changes.

Identity and time

Publication numberOT-2026-000091812 · never reused
Internal UUID01a0ae9d-43ba-7545-8907-dedceb4a0c0f · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091812
StatusPUBLIC

Content hashes

Canonical text71bcf5408a3684b240bc5aa3006b5c04cf879c4db6e7ef3926c16b7fc29a87a0
Markdown5c1f174494ca6577894dee05cafeda1eaecb3c610c7d104ababee1d948a78e1f
PDF
Publication page9a2039da158a06b50052794cbdf50b3aec41fb5e2df39a16bdbeeee8b31248f4
Manifest148f1e7aea8d5d453f7604d7591422f4440cb84ce145e75d11a4939fd6ff270b

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
Signaturevk7r72NqEbbeQHAJtQSAwuruIJ175Vn3ADFWLz3LnIz1PSr1Hxaem0WZAGNIP7KFmJdYkWYTMnYsL5xKIk5BAw==
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

2026-10-08T04:23:23.458679ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091812
observed 9a2039da158a06b50052794cbdf50b3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-08T04:23:23.406123ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091812/manifest.json
observed 148f1e7aea8d5d453f7604d7591422f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-08T04:23:23.387898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091812/publication.md
observed 5c1f174494ca6577894dee05cafeda1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-10-08T04:23:23.356189ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091812/publication.txt
observed 71bcf5408a3684b240bc5aa3006b5c04...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.391685ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091812
observed 9a2039da158a06b50052794cbdf50b3a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.373495ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091812/manifest.json
observed 148f1e7aea8d5d453f7604d7591422f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.355293ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091812/publication.md
observed 5c1f174494ca6577894dee05cafeda1e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.335085ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091812/publication.txt
observed 71bcf5408a3684b240bc5aa3006b5c04...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent