OpenTechnical

OT-2026-000028798

Publication integrity record

Two pad foam vacuum gripper, two outlet manifold, common isolation valve, two stage ejector, manifold pressure sensor, sustained blow-off before 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-2026-000028798) never changes.

Identity and time

Publication numberOT-2026-000028798 · never reused
Internal UUID01a0ae73-2252-779b-8598-70a55f690920 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:19:36.158293Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000028798
StatusPUBLIC

Content hashes

Canonical text600d5f9d0211ca0fa9068eb3c57b244b88b8ba08019ec7a4be6249183f9bf149
Markdownbd32aae05ac0d010ee8333fcb9fbf610af6e36a4ecbe9454f1c53cc8ddda273d
PDF
Publication page946f9a74ba1389e6e580fb767d1d696a4c598597d1b8bed8cd1358d5d5c19520
Manifestf6d27744e4561024d284dc8fd5d424091f686c44171c800e35a521d5561a17f0

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
SignaturekZ/giy5WWVtkmSo82KgFLOmKHSRKIc+/9cVlsIRNTblhyBT7O+E02UFxP1vsDnyrxtWdFwquS2ZCVHCtWAUzBQ==
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

2026-09-17T11:40:03.272767ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028798
observed 946f9a74ba1389e6e580fb767d1d696a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:03.254146ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028798/manifest.json
observed f6d27744e4561024d284dc8fd5d42409...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:03.235927ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028798/publication.md
observed bd32aae05ac0d010ee8333fcb9fbf610...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:40:03.215498ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000028798/publication.txt
observed 600d5f9d0211ca0fa9068eb3c57b244b...
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.