OpenTechnical

OT-2026-000015617

Publication integrity record

Four cup vacuum gripper, four outlet manifold, pump fed, supply line 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-2026-000015617) never changes.

Identity and time

Publication numberOT-2026-000015617 · never reused
Internal UUID01a0ae6e-0c4b-7691-b8d8-67526a706bde · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:14:02.846253Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015617
StatusPUBLIC

Content hashes

Canonical text6dabbf70d097f2ff77016ded837fb09b82075d02175e58529698707f031ba58d
Markdown2a792da915a40d2b6b694d5bc68070e2f5fc9cf871b93771592ed03ddf1fbf60
PDF
Publication page86f11ac26cb836760610e5804a08e7121ed3689e2174c28d233d137c91b15095
Manifest4afb332f4b17aac12d7d2a0ccf507b3727d99815b56cc84200b43d24996edf73

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
SignatureQvwXTvEPHqJNlRo0KPGs9FNydo/y4c6VMvHwhWQIPJr6ueE0cZlG3aHG89SuDnCYKMSSDrIbtjL/2edc63AkAg==
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

2026-09-17T12:04:51.913362ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015617
observed 86f11ac26cb836760610e5804a08e712...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:51.895284ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015617/manifest.json
observed 4afb332f4b17aac12d7d2a0ccf507b37...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:51.878849ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015617/publication.md
observed 2a792da915a40d2b6b694d5bc68070e2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:04:51.862467ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015617/publication.txt
observed 6dabbf70d097f2ff77016ded837fb09b...
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.