OpenTechnical

OT-2026-000091813

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-2026-000091813) never changes.

Identity and time

Publication numberOT-2026-000091813 · never reused
Internal UUID01a0ae9d-43ba-7e10-a635-26ec6961417c · 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-2026-000091813
StatusPUBLIC

Content hashes

Canonical text01aa8f36299449159387a1733dc8e8a5185254533c2c06cec4b9eb63c8c9779e
Markdown6d58c1a9846a34ba13b7ca5907b6b8bbb28a9b6ad56f5ef8247224968a148cad
PDF
Publication page030171fc430b21bdf5eb7a51200357d98fc09199536788c7b2ffbd5fb6c1442b
Manifestda058554606caf0d468ebdd2eb3070294d8a1e6ff0fa9217112ef14d97ccf92a

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
SignatureF1JY9B7gn57fkG8oIw0ayfRi2RD9X/ARw4cbg2+l6bP9qR5NNUY6KkBhctTHYx9anPLWs7bnB0xfn2CIXwpdCw==
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

2026-09-17T09:42:43.493610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091813
observed 030171fc430b21bdf5eb7a51200357d9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.472612ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091813/manifest.json
observed da058554606caf0d468ebdd2eb307029...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.453525ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091813/publication.md
observed 6d58c1a9846a34ba13b7ca5907b6b8bb...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:42:43.437643ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091813/publication.txt
observed 01aa8f36299449159387a1733dc8e8a5...
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.