OpenTechnical

OT-2026-000048013

Publication integrity record

Single cup vacuum gripper, plant vacuum fed, supply line pressure sensor, 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-2026-000048013) never changes.

Identity and time

Publication numberOT-2026-000048013 · never reused
Internal UUID01a0ae7f-c423-74b4-a6aa-848b263155d4 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:33:24.028554Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000048013
StatusPUBLIC

Content hashes

Canonical text79159f948bbf95e92d3ff692d6df459ca00a1a905622338c0724cc11086f79bd
Markdowne0ec6daeb1d4c176f7b79acc8bf52bbebc496b0984aaba0a298bacd131f55250
PDF
Publication page6505a0ed7a1fd7de19f79cf037c48f69b37d1ce62f303fa2e15b3fbf200284b5
Manifest558fd070dd8d9161f07556a777a27b86da1ab76b61c4a064d8be906d532adb2d

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
SignatureKs9VKOaxaeAhJN9LduhvaWrKjZxItAS+oD2u7LSLDEvZ6+qPk0GTlETAMwyKtY73VB+vKn3LYY/sAbCRWSGsCA==
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

2026-09-17T11:06:00.348427ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048013
observed 6505a0ed7a1fd7de19f79cf037c48f69...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:00.327586ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048013/manifest.json
observed 558fd070dd8d9161f07556a777a27b86...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:00.308161ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048013/publication.md
observed e0ec6daeb1d4c176f7b79acc8bf52bbe...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:06:00.291660ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000048013/publication.txt
observed 79159f948bbf95e92d3ff692d6df459c...
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.