OpenTechnical

OT-2026-000081308

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, pump fed, supply line pressure sensor, vented after 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-2026-000081308) never changes.

Identity and time

Publication numberOT-2026-000081308 · never reused
Internal UUID01a0ae96-f374-7098-9acc-8e574914e972 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081308
StatusPUBLIC

Content hashes

Canonical textf111b8b234dd4f7eaa96984386c2ae5df899bd8dcdc14e0c1dc742bff9f75e48
Markdown2cda1f2ad2ad515994e37a02f89230e21c43485861aadc83b5aa1f2e732d641a
PDF
Publication page5b888f2f2a1c9d71041053db622055aced6f1281a7defde55a90d51686ad2d13
Manifestbd3854e40aeea65f6a43c7462e6d9b418e7f689364e52c0cdd6393f9793c01c2

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
SignaturesP0Fiahyu2lslZbwWNrr8ABESAlm+INiUGALFo8HIUJAx+b5KD0wpUV4WOq5ajJrkneNFEBCtbxJpnQDZO4SAg==
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

2026-09-17T10:01:25.324408ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081308
observed 5b888f2f2a1c9d71041053db622055ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:25.305360ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081308/manifest.json
observed bd3854e40aeea65f6a43c7462e6d9b41...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:25.287478ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081308/publication.md
observed 2cda1f2ad2ad515994e37a02f89230e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:25.268979ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081308/publication.txt
observed f111b8b234dd4f7eaa96984386c2ae5d...
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.