OpenTechnical

OT-2026-000103855

Publication integrity record

Three bellows cup vacuum gripper, three zone face, per zone isolation, 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-2026-000103855) never changes.

Identity and time

Publication numberOT-2026-000103855 · never reused
Internal UUID01a0aea5-15e6-7db6-a7ee-ead4154f9201 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:14:09.781581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000103855
StatusPUBLIC

Content hashes

Canonical textef48fe87bf0d8e826c5111a63167e871d1b26ed620c389c89c27da8c3327e415
Markdown902db833863d86de5facc9cd9444c549a794cf5a0bc421fe05f7e06a9b614c3e
PDF
Publication page517064c559bb4414a64885ff445fb50973ab9b0c1a8542f6a9f467700e5886d2
Manifestf315e54951db14747fadad6941d3319ff86d93dd373a1510468916adddd8c707

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
SignaturerGXrc9pytIKdEXHOKm5LN36osE9gUBiIFiWIEUc/+dHghY8Ht8W+dHbjwW7RGjaio/U9wFhQyVQwI0TGh5ClBw==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:27:04Z
batch OT-TS-2026-W38-023 · RFC 3161 token · inclusion proof
root 095d30148a2ef87d42d7818ebe7543f9...

Independent retrieval

2026-09-17T09:21:50.179289ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103855
observed 517064c559bb4414a64885ff445fb509...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:50.159747ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103855/manifest.json
observed f315e54951db14747fadad6941d3319f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:50.142208ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103855/publication.md
observed 902db833863d86de5facc9cd9444c549...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:21:50.123952ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000103855/publication.txt
observed ef48fe87bf0d8e826c5111a63167e871...
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.