OpenTechnical

OT-2026-000090760

Publication integrity record

Four bellows cup vacuum gripper, four zone face, per zone isolation, single stage ejector, pressure sensor per zone, 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-2026-000090760) never changes.

Identity and time

Publication numberOT-2026-000090760 · never reused
Internal UUID01a0ae9c-7f31-7a58-8168-d75b38bdcb88 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:46.997728Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090760
StatusPUBLIC

Content hashes

Canonical textb4804e7d6da94421753b111ba0938f75089e218766dccac04537648c727f93d2
Markdownd31db0c5a01d555a2fa2f7bf6870edd30ff3a5726dfc4c1afc018230fc77df21
PDF
Publication page7de605019a231a0a7f2dc5edc3bf3f51ec9fc2afaae5743e985bbcc8cc1c094d
Manifest9f9b8e4e404c01216920e173507f90536551f90414fc6809552eda526b47361d

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
SignatureivvwlXYr9H1DuK7uVMxLRqhrd9xdlklemTUEYeDLJhVzSRNYOieGfdEnwTjAhZ10L+rXEn0uCiBa8fVjdowODg==
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

2026-09-17T09:44:57.372000ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090760
observed 7de605019a231a0a7f2dc5edc3bf3f51...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:57.353744ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090760/manifest.json
observed 9f9b8e4e404c01216920e173507f9053...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:57.337150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090760/publication.md
observed d31db0c5a01d555a2fa2f7bf6870edd3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:57.317811ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090760/publication.txt
observed b4804e7d6da94421753b111ba0938f75...
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.