OpenTechnical

OT-2026-000091886

Publication integrity record

Two bellows cup vacuum gripper, two zone face, six 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-2026-000091886) never changes.

Identity and time

Publication numberOT-2026-000091886 · never reused
Internal UUID01a0ae9d-43ba-7f01-82f5-f42bcfb30b35 · 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-2026-000091886
StatusPUBLIC

Content hashes

Canonical textd64fcb623a40aafeef32650765f6914f669b021df86d77b4a5214211b29c8d2a
Markdown72ba2747d9f84b6fe9056947ac9b187133cbfb51cc28e239a6a7f78eb433743f
PDF
Publication pagea37a6233afe9a6bcf9de9776f4a141ee3696007714bf9ef2adac888739e54b45
Manifest24ea85877953c849e8c993c234f1b3426b1edb7b30a8f0f5ad415a9cabc3f3d3

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
SignaturetQa47JKjtVv8SNyfkRJabv7H0iy7ofkLgcj9vwZplnwVty/p1HV7Ds9BmxyGgHcf1RVhmyGGeZ24VAtljN25CA==
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

2026-09-17T09:42:48.975052ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091886
observed a37a6233afe9a6bcf9de9776f4a141ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:48.955026ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091886/manifest.json
observed 24ea85877953c849e8c993c234f1b342...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:48.937096ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091886/publication.md
observed 72ba2747d9f84b6fe9056947ac9b1871...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:48.896929ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091886/publication.txt
observed d64fcb623a40aafeef32650765f6914f...
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.