OpenTechnical

OT-2026-000083189

Publication integrity record

Two cup vacuum gripper, two zone face, pump fed, 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-2026-000083189) never changes.

Identity and time

Publication numberOT-2026-000083189 · never reused
Internal UUID01a0ae97-c963-7288-b9ae-40446d8f6d86 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083189
StatusPUBLIC

Content hashes

Canonical textd211c15179dbc81b0e1b1ea2e409929685b3734f25085bb05de7e19fe75ab9e4
Markdown09de848bed348254dda7d1d550f51b978d4375d1c8c37ce392037f402cec29cc
PDF
Publication pagebe1f973cd6582405b737bb9a3ba1e865b064e2b74c53667d70fac4e869b435e8
Manifestcd2b50ab06cea3185acea70d0067fdad9acda04f6166b34d83d6484bd256107c

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
SignatureHGV58lvJUmmmmoR1H6akYg9VqmJzlu1xRE9TUzqCHI1HtL6e46dZ2l09HOQmmyKkRIPa/gI4C+9/fDVQFQNBDg==
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

2026-09-17T09:01:00.873781ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083189
observed be1f973cd6582405b737bb9a3ba1e865...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:00.855674ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083189/manifest.json
observed cd2b50ab06cea3185acea70d0067fdad...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:00.837556ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083189/publication.md
observed 09de848bed348254dda7d1d550f51b97...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:01:00.818612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083189/publication.txt
observed d211c15179dbc81b0e1b1ea2e4099296...
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.