OpenTechnical

OT-2026-000091816

Publication integrity record

Foam pad vacuum gripper, three zone face, four outlet manifold, pump fed, 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-2026-000091816) never changes.

Identity and time

Publication numberOT-2026-000091816 · never reused
Internal UUID01a0ae9d-43ba-724b-8f78-85b1cce00ea5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:37.256105Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091816
StatusPUBLIC

Content hashes

Canonical text50640a2dff81176018c95e2efadf918bae299093b01814e8409e80b83bc8680c
Markdown86ed9496ae3529032003518f223cfb7b8522d68fed8b735f7ec888df722fbd30
PDF
Publication page88f604e6c63f4dbae469d1b5b03f90a9843be05834957a36567f64172df1d659
Manifest2c6dc557070ceceef1d2328b8dec3c75ef03887d926c13a8adc966e16345d4e2

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
SignatureMFItB82rreTKgfXru+DUGLWxnqLDs8B7gnVmOTdzF1sJ5FlR/7V0DopUKQubWB6IIHF51st6Q4HgR3tAsGP5CQ==
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

2026-09-17T09:42:43.718206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091816
observed 88f604e6c63f4dbae469d1b5b03f90a9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.701594ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091816/manifest.json
observed 2c6dc557070ceceef1d2328b8dec3c75...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.684091ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091816/publication.md
observed 86ed9496ae3529032003518f223cfb7b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.667233ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091816/publication.txt
observed 50640a2dff81176018c95e2efadf918b...
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.