OpenTechnical

OT-2026-000022638

Publication integrity record

Six pad foam vacuum gripper, six outlet manifold, common isolation valve, 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-2026-000022638) never changes.

Identity and time

Publication numberOT-2026-000022638 · never reused
Internal UUID01a0ae70-46e9-7ac2-bb70-86ca72385d8d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:28.929798Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022638
StatusPUBLIC

Content hashes

Canonical text0f15ea227876bcbec4a37f8783474a896309917e11e287504d95ab60ca70c607
Markdown41d1066cde350494e8f7998cb15e7ab360c139c157fa76cdfc5fadf4bf1897a1
PDF
Publication page216d53d597644198fad5439b7b37a7c305415600e9ed4e9c9ebde604021ff1ac
Manifest9dc5c81b84d85619732be2ec4ce92028a67e8bb39845025f6d3bc1076ae05db7

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
SignatureywQljJHTdF6cw4/QTugZqL8W77MkMaELo3baDVTuDzeSDqqYVCkRT/zDjCZrS7vvwDZyozvzDlQCzP6Ylf5+Cw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:52:01.028821ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022638
observed 216d53d597644198fad5439b7b37a7c3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:01.010996ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022638/manifest.json
observed 9dc5c81b84d85619732be2ec4ce92028...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:00.990353ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022638/publication.md
observed 41d1066cde350494e8f7998cb15e7ab3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:52:00.972104ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022638/publication.txt
observed 0f15ea227876bcbec4a37f8783474a89...
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.