OpenTechnical

OT-2026-000090501

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, single stage ejector, 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-2026-000090501) never changes.

Identity and time

Publication numberOT-2026-000090501 · never reused
Internal UUID01a0ae9c-7f2e-7c31-b047-74ff721bff1c · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090501
StatusPUBLIC

Content hashes

Canonical text5942ab278a335bf26bf259ab6cfdda679b80edc68c02e8e781a219b00c2b9198
Markdown55c0549e587d74793b3265d68f432d9a574449bbe53cd7d1b04958076e2332cc
PDF
Publication page3e5987e3246e8ef49f6da7d2cbdcc9f3c71a4091bf5dc1662da4c898b8db81aa
Manifestc89a0bb9773dcce385316fea44859cc89abd7b51d5679c3032ab913e52731fa4

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
Signature8tp8Twb8NC4tNCSC57PqaIlHT4gsOB1/PRdn/AMMZ76q5C95fn4KVCszfhnauBImyoyjkLH2Yzt6QtQAUtJHDA==
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

2026-09-17T09:44:38.623104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090501
observed 3e5987e3246e8ef49f6da7d2cbdcc9f3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:38.604135ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090501/manifest.json
observed c89a0bb9773dcce385316fea44859cc8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:38.589014ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090501/publication.md
observed 55c0549e587d74793b3265d68f432d9a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:38.573561ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090501/publication.txt
observed 5942ab278a335bf26bf259ab6cfdda67...
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.