OpenTechnical

OT-2026-000090174

Publication integrity record

Four bellows cup vacuum gripper, four zone face, six outlet manifold, three stage ejector, manifold 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-2026-000090174) never changes.

Identity and time

Publication numberOT-2026-000090174 · never reused
Internal UUID01a0ae9c-428f-7129-a2e9-1017b56f64ee · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:31.390046Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090174
StatusPUBLIC

Content hashes

Canonical textf39313f14851fd3b3de2f1d9fdd51d469dfccc70a6f0b6a8fa1b24317e91fd02
Markdown2cb7ac54509f887dde584b44c799a867df70a8598677ca2adf1058b0988eb990
PDF
Publication pagec4de410b95fdb2d414cc670f72bc34cf8c43e8a3746f798607063c464973b676
Manifest3e5de65ee8533f088db8d19d5ab350174bedc0034b724854df0a192e8a544fa1

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
SignatureSxUhut16sF4jqxYq5NaQZcP5wBG9SY8aYnbAknvf/aPvNarSsFSf5+OCAM7cXKSp9WX4Zv6KjqROQbu5dfyICA==
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

2026-09-17T09:46:14.282333ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090174
observed c4de410b95fdb2d414cc670f72bc34cf...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:14.265229ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090174/manifest.json
observed 3e5de65ee8533f088db8d19d5ab35017...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:14.248728ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090174/publication.md
observed 2cb7ac54509f887dde584b44c799a867...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:14.230324ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090174/publication.txt
observed f39313f14851fd3b3de2f1d9fdd51d46...
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.