OpenTechnical

OT-2026-000072460

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, three stage ejector, supply line pressure sensor, vented before 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-2026-000072460) never changes.

Identity and time

Publication numberOT-2026-000072460 · never reused
Internal UUID01a0ae92-89d8-7d39-8ef7-3fadc32e9487 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072460
StatusPUBLIC

Content hashes

Canonical text9d2b7f7de219d0cbc67c0a16c86515ff0b096fa9a1d3576a7eec3c171f49a987
Markdown62bbff6c02f4758ee914b8b3ab452ba90c9dfc0465c4e540ba7fb9bde6605230
PDF
Publication pagea9233748a35dccad47951cf156cdf70ca84df7dfc4eea97cb0340dc6ec27f0bc
Manifest135b969a863c73bfefaabb3bdc8ee71e892b59387a3f80d0678d2a50b7489597

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
Signature6pLEequffdbkSR2Q6xa7347nQWo+POYU5G6panFoZu8oNIKWK0HkleoAziz0G6POLlzALEGWgVUyo03gCmx5Bg==
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

2026-09-17T10:22:16.952416ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072460
observed a9233748a35dccad47951cf156cdf70c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.934924ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072460/manifest.json
observed 135b969a863c73bfefaabb3bdc8ee71e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.917260ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072460/publication.md
observed 62bbff6c02f4758ee914b8b3ab452ba9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.901265ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072460/publication.txt
observed 9d2b7f7de219d0cbc67c0a16c86515ff...
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.