OpenTechnical

OT-2026-000041897

Publication integrity record

Single cup vacuum gripper, common isolation valve, two stage ejector, sustained blow-off 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-2026-000041897) never changes.

Identity and time

Publication numberOT-2026-000041897 · never reused
Internal UUID01a0ae79-e8a6-76fe-9941-4bd8ecd6b90d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:00.220789Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000041897
StatusPUBLIC

Content hashes

Canonical textf609addbd8cdd078e6e6c571595ce978106854c5710ac493d3ed01ea0c68dfbd
Markdown93cdf64dc796249947a057f552f7875a47589da66c68fa3c33452beaec6bd6aa
PDF
Publication page3143bf48e119829f1b592f8c941e3a07b1c05a435294ab5be767a7f21a524e5c
Manifest3a6dbb7ca77576def73cf21e7cfc6f52c7c5e5ffdb469a3a8ac4de03017838a9

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
SignatureLn45wUJbtn4bQawABjbiHmFxv74ZS+7t/zKEh1JhGGZ2t6+SZgwQhGsz6CQLYucNm7wsLr0La1Ww9sI2TWbFBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:16:46.603709ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041897
observed 3143bf48e119829f1b592f8c941e3a07...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:46.586451ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041897/manifest.json
observed 3a6dbb7ca77576def73cf21e7cfc6f52...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:46.569052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041897/publication.md
observed 93cdf64dc796249947a057f552f7875a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:16:46.552733ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000041897/publication.txt
observed f609addbd8cdd078e6e6c571595ce978...
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.