OpenTechnical

OT-2026-000091723

Publication integrity record

Four bellows cup vacuum gripper, four zone face, four outlet manifold, pump fed, pressure sensor per zone, sustained 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-2026-000091723) never changes.

Identity and time

Publication numberOT-2026-000091723 · never reused
Internal UUID01a0ae9d-43b9-78c7-b6c6-c0f7ef867ab4 · 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-2026-000091723
StatusPUBLIC

Content hashes

Canonical text80ab07d418c7135c625cfbc3f0da125369f74a1743b44bec836730346edb49f0
Markdown5b9eb8616e1cc738646b31d6691e0f7486018ee711047b032d0e2c3b3d9e234a
PDF
Publication pagef61946cd93372089462033e9628ee10d4f92756e052d4809bd3126b2992ee2d4
Manifestd1e57b2ffd5afcdac7c063fecf295dc9c0887afc74f0ddcdc503b905001019d5

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
SignaturezE96FsTTMeb6c4Tc4SteUkfi+CEDZjxCHbFC2XYE6727bXVgC8C2yfiGoGEY8ubwBNF2irPx5i2TLqgZiguMAw==
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

2026-09-17T09:42:06.813933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091723
observed f61946cd93372089462033e9628ee10d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:06.797788ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091723/manifest.json
observed d1e57b2ffd5afcdac7c063fecf295dc9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:06.781077ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091723/publication.md
observed 5b9eb8616e1cc738646b31d6691e0f74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:06.762452ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091723/publication.txt
observed 80ab07d418c7135c625cfbc3f0da1253...
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.