OpenTechnical

OT-2026-000077417

Publication integrity record

Two bellows cup vacuum gripper, two zone face, two outlet manifold, single stage ejector, 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-2026-000077417) never changes.

Identity and time

Publication numberOT-2026-000077417 · never reused
Internal UUID01a0ae94-f509-778d-87b7-79cda458b46e · 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-2026-000077417
StatusPUBLIC

Content hashes

Canonical text72a39a9ca1ea824290a2a5837b1645681f69b61896879d546c2187837f9ea5b6
Markdown33a0e9a8d1338564419983d44a72f8434e97e830a5b9a8db1d237ce35b36ae5c
PDF
Publication pageb47dab8d0ba178d334f229aa282ba6106843bd86003d252da6fb792bfcdfd8cb
Manifestca8061e9c368b5f65b79f6d16c0e673d4fdc440eeb38c708e65c149c5cfd7929

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
Signature2foOKrMh6PWDV+yMsVtFQj4VcAzADO0lc5BqiE1CcJh1cAAvm2nQgSqHT2/TbZWk/xAfkJRNWgv7IdqDe6uABA==
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

2026-09-17T10:09:04.012116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077417
observed b47dab8d0ba178d334f229aa282ba610...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:03.992338ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077417/manifest.json
observed ca8061e9c368b5f65b79f6d16c0e673d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:03.974140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077417/publication.md
observed 33a0e9a8d1338564419983d44a72f843...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:03.954393ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077417/publication.txt
observed 72a39a9ca1ea824290a2a5837b164568...
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.