OpenTechnical

OT-2026-000031430

Publication integrity record

Three pad foam vacuum gripper, three outlet manifold, plant vacuum fed, pulsed 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-2026-000031430) never changes.

Identity and time

Publication numberOT-2026-000031430 · never reused
Internal UUID01a0ae74-87ad-7a7c-9b2c-779fe222108a · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:21:07.653052Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000031430
StatusPUBLIC

Content hashes

Canonical text793c9e478939d48e10f977584743450ffa087fa99aae6e27049293afd6093fd8
Markdown71f85faeb91f86517c86c070b5edc5cd2c8f55c06ca403854eacb62d46ae66a0
PDF
Publication page80ea9e2dd431432b0662c742067b47eec5796da3814f1af2f208808a5ee9043d
Manifestd0feafbabfe16b0d1810eb7f5c8ae2f76c2614c9e748e23a61e4adc45ce2e231

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
Signaturep2iFhQ+/YRrq4CqrgYCRI+pyDL+8CHEO1w9rpMvr3dum8/YjLTsCe+WrqCws70rNwhTMGxEsgE4bVJFMJvmzCQ==
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

2026-09-17T11:36:09.030152ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031430
observed 80ea9e2dd431432b0662c742067b47ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:09.011806ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031430/manifest.json
observed d0feafbabfe16b0d1810eb7f5c8ae2f7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:08.992527ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031430/publication.md
observed 71f85faeb91f86517c86c070b5edc5cd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:36:08.973887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000031430/publication.txt
observed 793c9e478939d48e10f977584743450f...
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.