OpenTechnical

OT-2026-000044170

Publication integrity record

Four pad foam vacuum gripper, four outlet manifold, common isolation valve, pump fed, sustained blow-off after set-down, on a tool changer

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-2026-000044170) never changes.

Identity and time

Publication numberOT-2026-000044170 · never reused
Internal UUID01a0ae7b-d67b-7551-85c3-94d7d5ea507b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:29:06.584190Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000044170
StatusPUBLIC

Content hashes

Canonical textca40f004372bd0ab20ecc9427a0ea9be1e2f857ba60c20fe319ef0f5b2ef8694
Markdown79a57bfb0e15eefb199aeb88c68ad335dcb94f0be91b86f8e8283290d369cbed
PDF
Publication pagebc0b312c33a25eefc476a02a5fc4a548dcfb05f2b8dca114f1be58432f37c52d
Manifestab5403509b417127436a9de0b4f63f939a41494d4a94ae1325b4d0a0caf27d07

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
SignatureTZKBS7QIUQFV5sXJzq2bqdfUBxBInyu5yqpxTXWpxtOhnXUqS+VHeLHnJVSvSrbOaYS+sSgJthgeY8phSJt2BA==
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

2026-09-17T11:12:36.135488ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044170
observed bc0b312c33a25eefc476a02a5fc4a548...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:36.116907ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044170/manifest.json
observed ab5403509b417127436a9de0b4f63f93...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:36.098227ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044170/publication.md
observed 79a57bfb0e15eefb199aeb88c68ad335...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:12:36.077986ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000044170/publication.txt
observed ca40f004372bd0ab20ecc9427a0ea9be...
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.