OpenTechnical

OT-2026-000012783

Publication integrity record

Four bellows cup vacuum gripper, four zone face, pump 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-2026-000012783) never changes.

Identity and time

Publication numberOT-2026-000012783 · never reused
Internal UUID01a0ae6d-5563-74c1-82ca-1d31a35233b8 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:16.019734Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000012783
StatusPUBLIC

Content hashes

Canonical textc4f4ca108bf18684f3a85e0e0aff2adf9a98f96d585dea4a443a481a2ddd4726
Markdownd35548d769363386ec54aa6ac4bec2958af03f737bec3a2c32bb679c45586afb
PDF
Publication page08cdc23553330d4aca260ae0e332637ab2ac270e989fbdcedec6dd49d94b4cf6
Manifest9ed02eb1bc9b144546bd280827896545c69598bf377fe51147aa0ee6ec014580

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
SignaturepqidtkdCu8JLnOripq3+DGUpiTlanwpl8Hs1bZ/4oouiEFVcKgm4dWbaJ3FFAxRJ1/iZVXflxc1wagFNd1jABg==
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

2026-09-17T12:10:30.185638ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012783
observed 08cdc23553330d4aca260ae0e332637a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:30.165169ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012783/manifest.json
observed 9ed02eb1bc9b144546bd280827896545...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:30.145578ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012783/publication.md
observed d35548d769363386ec54aa6ac4bec295...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:10:30.124274ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000012783/publication.txt
observed c4f4ca108bf18684f3a85e0e0aff2adf...
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.