OpenTechnical

OT-2026-000042531

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, single stage ejector, manifold pressure sensor, pulsed 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-2026-000042531) never changes.

Identity and time

Publication numberOT-2026-000042531 · never reused
Internal UUID01a0ae7a-c0cd-7560-ad05-502f0849458d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:55.489038Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042531
StatusPUBLIC

Content hashes

Canonical text57f68792af9e7fe29bbe2a4035f87143bec435a39240434ea7f14a6d942b4421
Markdownad849296f48be9780db662990fbfc3e97a13499fa3bc2d22d185fd450aa28987
PDF
Publication page654a60fd3bf9e0a6c0020042aa6cb5668adb92c87958bff6ccf5b915ae42b9c0
Manifestb068a2d5f979f0c3904a3b4a0d95bbcae8834e567962dc4cd0e0c042c62ff13e

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
SignaturerMa2L0xjBEidjETj/jVz3r7MUchKGCC7REyXyUWYNUMnaEuKQ1UtH2TMSKLtemg7w7tuV0neG92lWccPM+qZCQ==
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

2026-09-17T11:14:07.231574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042531
observed 654a60fd3bf9e0a6c0020042aa6cb566...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:07.211730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042531/manifest.json
observed b068a2d5f979f0c3904a3b4a0d95bbca...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:07.191894ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042531/publication.md
observed ad849296f48be9780db662990fbfc3e9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:14:07.171802ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042531/publication.txt
observed 57f68792af9e7fe29bbe2a4035f87143...
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.