OpenTechnical

OT-2026-000025247

Publication integrity record

Four cup vacuum gripper, four zone face, four outlet manifold, plant vacuum fed, pulsed blow-off 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-2026-000025247) never changes.

Identity and time

Publication numberOT-2026-000025247 · never reused
Internal UUID01a0ae71-5fa6-79fb-931b-b28f3454e122 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:17:40.790954Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000025247
StatusPUBLIC

Content hashes

Canonical text38c6a99741a89cee8539ac1c17ed1d411b947891761e2c0d5aecce3f7e8beb9e
Markdown8abddbd6edaefb219583a9d71c0885aec0a081cd96e82b5a4e7753d6f54b5ddd
PDF
Publication pagea407ad6e982d9a951adb56c76696b945204e433c518e7b882cf2baed3057fc06
Manifestad648565e9c824439dddfcb1aacca357cee3d6dbeab41d2532215b7ac3d5fd86

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
SignatureitZWWAFRJ29IwSln9A2s8rIMYvRbL6zo/QnJ5HQFbVCK4N/Q7VcCpOOwBEIXN8uGeMuWZ47sZ1g9W/IDbbe8DA==
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

2026-09-17T11:47:12.959721ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025247
observed a407ad6e982d9a951adb56c76696b945...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:12.941947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025247/manifest.json
observed ad648565e9c824439dddfcb1aacca357...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:12.923032ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025247/publication.md
observed 8abddbd6edaefb219583a9d71c0885ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:47:12.905572ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000025247/publication.txt
observed 38c6a99741a89cee8539ac1c17ed1d41...
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.