OpenTechnical

OT-2026-000091888

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six outlet manifold, pump fed, pressure sensor per zone, sustained blow-off before set-down

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-2026-000091888) never changes.

Identity and time

Publication numberOT-2026-000091888 · never reused
Internal UUID01a0ae9d-43ba-7869-8fae-44f881dc6df4 · 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-2026-000091888
StatusPUBLIC

Content hashes

Canonical text2cb4e265ac3a03b11d98e8c21193374d87483220c6ab232bb2c223789088bc35
Markdownf9b1c501719f7fb3fc4a512922bc6811d069607be4b2b6b01c39f04abf821835
PDF
Publication page3da57b32093e07d71b2663bd6d75ab70a951234191c4f792a5f98199a660e4f3
Manifestac9e6ba3dc704783e640f95252e19a2afe89da94385522004437a1690874eb30

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
SignaturegGcAVX0BStVOlu+eG5D6jSf9V5FBuvh47fLXqCz2c32iwYx1EsjZa0O9pcfYxl6tY53GVWXTVjnW4wwioxwBDQ==
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

2026-09-17T09:42:49.121782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091888
observed 3da57b32093e07d71b2663bd6d75ab70...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:49.104917ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091888/manifest.json
observed ac9e6ba3dc704783e640f95252e19a2a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:49.086120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091888/publication.md
observed f9b1c501719f7fb3fc4a512922bc6811...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:49.068571ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091888/publication.txt
observed 2cb4e265ac3a03b11d98e8c21193374d...
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.