OpenTechnical

OT-2026-000078830

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, single stage ejector, vented 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-2026-000078830) never changes.

Identity and time

Publication numberOT-2026-000078830 · never reused
Internal UUID01a0ae95-ccbd-78da-80bd-994bd97132bd · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:28.017032Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078830
StatusPUBLIC

Content hashes

Canonical textc0917aaebf8b338eb88edc33d0c20509324c69e410336e4de977e0ae2ed220f1
Markdown97fab3928b9c4d328adb1e7f1253c132f40d988cbe8bb65be2d6e67e3d3cd70e
PDF
Publication page5086f430af688141519639f52b3acc750a4b2d995a9030f986409f8a098e41bf
Manifest66c4ca32cc16429cb570b227e3cd6fe28d29b976a27b9cf83a3f6ba9c0681584

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
SignatureBhGer26zmMVsHbQPxWHk7XM5jJNfzT4RV9ctTQklJCnU7EHtCS5aq555pXmG1tqkDEEbhfQdlXw7cr+TXnz3BA==
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

2026-09-17T10:05:37.696693ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078830
observed 5086f430af688141519639f52b3acc75...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:37.680264ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078830/manifest.json
observed 66c4ca32cc16429cb570b227e3cd6fe2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:37.662634ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078830/publication.md
observed 97fab3928b9c4d328adb1e7f1253c132...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:05:37.646673ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078830/publication.txt
observed c0917aaebf8b338eb88edc33d0c20509...
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.