OpenTechnical

OT-2026-000087019

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, single stage ejector, 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-2026-000087019) never changes.

Identity and time

Publication numberOT-2026-000087019 · never reused
Internal UUID01a0ae9a-9f2d-7386-91ce-4b0fb09f9ea5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:44.027043Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087019
StatusPUBLIC

Content hashes

Canonical text0b62e01e6bdffdae6049c1fbdf1084d04fdd8e042b6aa87de6821c1067374649
Markdownf16d701d34c4e73dd4ccb89ed9b8d9c8318172064a41351f6f6d9d9993ef3fc0
PDF
Publication page9ec6fbce227daab0839c7071a6668accfc005102be81f13e22aa5a2543bdaa69
Manifest61d3cc5c96d561b890db1475dc58363f7cea01e1e6b4ab3588381b2087ca9d34

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
SignatureywHOqm8XOCLFU18YGknGaia+NGEr4cb6+ZrK93Dj2q+o9h99a4i+5MjuwAt4nMVyIAUbDV/6Z1qrJBnjUoZqBg==
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

2026-09-17T09:51:14.477103ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087019
observed 9ec6fbce227daab0839c7071a6668acc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:14.461120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087019/manifest.json
observed 61d3cc5c96d561b890db1475dc58363f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:14.446120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087019/publication.md
observed f16d701d34c4e73dd4ccb89ed9b8d9c8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:14.428664ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087019/publication.txt
observed 0b62e01e6bdffdae6049c1fbdf1084d0...
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.