OpenTechnical

OT-2026-000087816

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, pump fed, supply line pressure sensor, 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-2026-000087816) never changes.

Identity and time

Publication numberOT-2026-000087816 · never reused
Internal UUID01a0ae9b-1aa5-7517-9ce1-26a1c736d6b3 · 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-2026-000087816
StatusPUBLIC

Content hashes

Canonical textdc58cc2205ccdca29c74515343b3074ccbad5c0a2d8bb11591e21b403224cb6c
Markdown880e4f0eb649728a721956cda4a615aa0e81b2ac7d120274d6dc7a123f329007
PDF
Publication pagea965d96bdc79c0b2bfecf5a79cc67209eec7bf5011d7389eda2ff20b55478069
Manifest13601b51848dfc4fcdfbec79608e39d999fc47472701f0527b6cd7c5d995b8e6

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
SignaturecyHH409Z/J29jCdjeiUNW9L8Dg3n0X19J2svg/kOtAgOozGUBIfqEeHFZYJ1MbucaBJx/hGO+QC3iRmWdO9pDw==
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

2026-09-17T09:49:03.013099ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087816
observed a965d96bdc79c0b2bfecf5a79cc67209...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:02.992435ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087816/manifest.json
observed 13601b51848dfc4fcdfbec79608e39d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:02.973662ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087816/publication.md
observed 880e4f0eb649728a721956cda4a615aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:02.952692ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087816/publication.txt
observed dc58cc2205ccdca29c74515343b3074c...
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.