OpenTechnical

OT-2026-000081617

Publication integrity record

Foam pad vacuum gripper, three zone face, three outlet manifold, single stage ejector, 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-2026-000081617) never changes.

Identity and time

Publication numberOT-2026-000081617 · never reused
Internal UUID01a0ae97-0f72-70db-bfa3-8a8bbf678bbf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:50.648824Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081617
StatusPUBLIC

Content hashes

Canonical texte6d339aa08f1456958e5346383d7712d561100f867611b43a7cf8ea163cc6d62
Markdowne3c51d95070961a991978f9678acf211b0e108b61e2ff90093206f2720b83e7e
PDF
Publication page3ad05faa86d43fcdeac8d3e90e6febfeee66fff444f73a009e58944822df745f
Manifestfa57441a477e1064b05b553e566eb4423cc12aeb1c311ec21bc73fc409dfcd50

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
SignatureWGx7FRX5oFg//YtNx7KnlflfzoPjcZYWqP1pHxABFChH8xd9nrVJFItrn4l49yCnUolJaCo/YTWD46W9jY71CQ==
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

2026-09-17T09:59:39.566581ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081617
observed 3ad05faa86d43fcdeac8d3e90e6febfe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:39.548993ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081617/manifest.json
observed fa57441a477e1064b05b553e566eb442...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:39.531142ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081617/publication.md
observed e3c51d95070961a991978f9678acf211...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:59:39.514186ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081617/publication.txt
observed e6d339aa08f1456958e5346383d7712d...
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.