OpenTechnical

OT-2026-000103985

Publication integrity record

Foam pad vacuum gripper, four zone face, per zone isolation, pump fed, pulsed blow-off after set-down

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-2026-000103985) never changes.

Identity and time

Publication numberOT-2026-000103985 · never reused
Internal UUID01a0aea5-15e8-71df-8209-5064abcdb8bd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103985
StatusPUBLIC

Content hashes

Canonical text011602d331823d6727e41f9f778df2f93094e9ed9cba5f678322d9ff182c5cb2
Markdownc41b516ae0dd2ac2637e4b22c3bb6b71124df87b88a279ea97c299ee4a7d0bf9
PDF
Publication page1af7800f9464e6aac1eef75e728ab9d69ded64fbadf4e4984b9168fb5396873f
Manifest33d634c61d605c219520ae70ce3c8c6a584300de5230fb7c52d8600d5c2d5701

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
Signature7A3e3OWERCn8GitEq0zdUR3m8JTpOuA9BSOHtp7Im3sLXXQKZNs7iGOisT0KVFeb/i9dBRXzeJLbWilubWmaCA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:59.420001ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103985
observed 1af7800f9464e6aac1eef75e728ab9d6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:59.401623ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103985/manifest.json
observed 33d634c61d605c219520ae70ce3c8c6a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:59.383712ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103985/publication.md
observed c41b516ae0dd2ac2637e4b22c3bb6b71...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:59.367417ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103985/publication.txt
observed 011602d331823d6727e41f9f778df2f9...
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.