OpenTechnical

OT-2026-000067688

Publication integrity record

Single bellows cup vacuum gripper, single stage ejector, supply line pressure sensor, sustained 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-2026-000067688) never changes.

Identity and time

Publication numberOT-2026-000067688 · never reused
Internal UUID01a0ae8f-6bdb-7b40-b4bb-ac290d0180ee · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:29.998864Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067688
StatusPUBLIC

Content hashes

Canonical textc73e7ec832c1c4f79c1521216213e0c7dc93c306eefeccd3c7b22ab62cf4fbb2
Markdownb31b7832ab7b2ca4da8a98f911b4d1bdb0ddb3ae1779644ecece209f5ea19e4f
PDF
Publication page2338bd0d7b08f9c6da5aeba0ebd317a87233d396bb69579d99f75ab2f6c3e110
Manifest429e9931b731f5e6596ed9534a03c70f87652e3c1353a451781220a76202010e

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
Signaturee8BlTS1yEHQAR9XlicD8dclRvUnx7ly+tk0iHSE5VBVd/0rkGMhdBE1sUFQSij4i/4Wa5KdEYQ5RTP70dV1GDw==
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

2026-09-17T10:32:01.673359ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067688
observed 2338bd0d7b08f9c6da5aeba0ebd317a8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:01.655562ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067688/manifest.json
observed 429e9931b731f5e6596ed9534a03c70f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:01.638059ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067688/publication.md
observed b31b7832ab7b2ca4da8a98f911b4d1bd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:01.620882ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067688/publication.txt
observed c73e7ec832c1c4f79c1521216213e0c7...
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.