OpenTechnical

OT-2026-000087821

Publication integrity record

Two cup vacuum gripper, two zone face, per zone isolation, pump fed, supply line pressure sensor, 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-2026-000087821) never changes.

Identity and time

Publication numberOT-2026-000087821 · never reused
Internal UUID01a0ae9b-1aa5-735a-878b-fb3ea0b0b152 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087821
StatusPUBLIC

Content hashes

Canonical texte82caee3d173fdad73c04cc19609cf1b85e50c97f7b0c03f4f1cd61173b81549
Markdown59414cbf4cc907cfb5b08cfbcf72753bb272b0aacd2e1df2dd513e3becf9cddf
PDF
Publication paged7c3f3314984cd661485510dabac77f43e9f0ee22848edf00923c7e5e332e08a
Manifestaa0c3fe967d1df24f85caf66bcaa9117c68e1a3ab4511cbf0a3115aebebfff4c

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
SignatureAX5E1bzxiMTi1VkIFHaIrInN97ODmvO/cZQdw/ZIHRXS2JYnUU7zDIFaOcdUiF6+FtFElxl6EcjIw+i8ziLqAQ==
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

2026-09-17T09:49:03.547129ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087821
observed d7c3f3314984cd661485510dabac77f4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:03.526807ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087821/manifest.json
observed aa0c3fe967d1df24f85caf66bcaa9117...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:03.509116ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087821/publication.md
observed 59414cbf4cc907cfb5b08cfbcf72753b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:03.490049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087821/publication.txt
observed e82caee3d173fdad73c04cc19609cf1b...
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.