OpenTechnical

OT-2026-000090870

Publication integrity record

Foam pad vacuum gripper, two zone face, common isolation valve, 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-2026-000090870) never changes.

Identity and time

Publication numberOT-2026-000090870 · never reused
Internal UUID01a0ae9c-c010-7d33-be26-4a3a06573840 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:03.518217Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000090870
StatusPUBLIC

Content hashes

Canonical text4feac639ee6b32e0f9e5886a6177bf1ed91b3d7b4b03eee5185fc366bcf9856b
Markdownc3f2a39804316ccdbaecc85821eeadfdd58e4c595230f4d2db41773c338f7205
PDF
Publication pagebba5460f06f7820fa7d56869c631cb2676bba66ee7b64b4a30f6df680dd07fb7
Manifestfa45da9336f7a3e561e9db106d1d83f7333a1658eebbf783ef609df7896ece7c

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
SignaturenCF/tmNy5RPZAblTVYm3U1fSbGrp2efx/WL+8/VTOqgTZOl2vQ4E8gr6BXNgiLBehKeUUVjaPPUn8pZXaJtoDA==
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

2026-09-17T09:44:03.827663ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090870
observed bba5460f06f7820fa7d56869c631cb26...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.807454ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090870/manifest.json
observed fa45da9336f7a3e561e9db106d1d83f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.788863ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090870/publication.md
observed c3f2a39804316ccdbaecc85821eeadfd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:44:03.769150ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000090870/publication.txt
observed 4feac639ee6b32e0f9e5886a6177bf1e...
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.