OpenTechnical

OT-2026-000077075

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000077075) never changes.

Identity and time

Publication numberOT-2026-000077075 · never reused
Internal UUID01a0ae94-f507-7aef-afb8-4495d731d50d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077075
StatusPUBLIC

Content hashes

Canonical textc444f47d19813dd08e9881fbda631da7ec9ad1560f0cbcda9f0e0817b2fe3c59
Markdown953ebd323ea11782f2892f2bb1af176c826db3f8e2551dd2834aa071b6d9ec97
PDF
Publication page1c96da92f9e1cb46925cba7a9a65f4d3b5fd6e38181a7cc838c3917812ed0798
Manifestf7319f8dd1b69f1e9e5c4cd07b958f7e495d141d6dca189780fde116d88a84fa

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
Signature0HQYQKlH5j5zO+WxvPy4pVAgUDZidpmaYw/A3K7COqqfoKkBn4fQmosadN9OM0lMVaZkTyJCEhFSObah+qvDBw==
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

2026-09-17T10:11:27.299784ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077075
observed 1c96da92f9e1cb46925cba7a9a65f4d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:27.283150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077075/manifest.json
observed f7319f8dd1b69f1e9e5c4cd07b958f7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:27.266871ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077075/publication.md
observed 953ebd323ea11782f2892f2bb1af176c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:11:27.249358ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077075/publication.txt
observed c444f47d19813dd08e9881fbda631da7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:31.796572ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077075
observed 1c96da92f9e1cb46925cba7a9a65f4d3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:31.775660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077075/manifest.json
observed f7319f8dd1b69f1e9e5c4cd07b958f7e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:31.756290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077075/publication.md
observed 953ebd323ea11782f2892f2bb1af176c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:31.738860ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077075/publication.txt
observed c444f47d19813dd08e9881fbda631da7...
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.