OpenTechnical

OT-2026-000078668

Publication integrity record

Four bellows cup vacuum gripper, four outlet manifold, common isolation valve, three stage ejector, vented after 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-2026-000078668) never changes.

Identity and time

Publication numberOT-2026-000078668 · never reused
Internal UUID01a0ae95-ccbb-74a9-8e9d-5b34c720c3ad · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078668
StatusPUBLIC

Content hashes

Canonical text97dcbccc33779f24374d3d611d9c155e2a75005844b6fcb8d8693c9735555398
Markdown04e2458132e1f498adb3ce21b6342cd86155f55c11a9009ed10a7a51ba620bc5
PDF
Publication page450a1c399c70524a24dc0cee0bc6f74105421cfe20d1ab4a4273e7f7d176f631
Manifestf91988581d08672916de384ed845a40adcee699b95098adc2ae302cb73a72dd1

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
SignaturezD2ZcpoE1jh9W06z5IBURMy8O1ahs2IZFfJ9/WThw0bEnvyWKA8Pw/byF6FXA4DzbB5klzqzt8ET53y3FwcnAg==
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

2026-09-17T10:05:26.472844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078668
observed 450a1c399c70524a24dc0cee0bc6f741...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:26.454879ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078668/manifest.json
observed f91988581d08672916de384ed845a40a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:26.437710ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078668/publication.md
observed 04e2458132e1f498adb3ce21b6342cd8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:26.420451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078668/publication.txt
observed 97dcbccc33779f24374d3d611d9c155e...
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.