OpenTechnical

OT-2026-000042194

Publication integrity record

Foam pad vacuum gripper, common isolation valve, pump fed, 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-2026-000042194) never changes.

Identity and time

Publication numberOT-2026-000042194 · never reused
Internal UUID01a0ae7a-5d72-7770-84eb-7b547f087753 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:27:30.052779Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000042194
StatusPUBLIC

Content hashes

Canonical text94e21099c570915a060b967789821123c8bd3960a8d27239b0615513efacf53a
Markdown873b4b90ee94d327f470c009089dfd318b87e3f58e31b23aa54ce1ca3304ff61
PDF
Publication page4e33ac94669eda8b6857d7ae117c85fd49a90414b9b19fd95cbd10907e33e69e
Manifest7d033290ab5810f3fab99f1a689be949094583ec220545b62a5963c53e223d1d

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
Signatureyaoi33YBcODomUkqmk1NAD6tnX3OQfIOdfFdjYFTuV/2gbfrlI3bmcc4gRq+H+lw0WaLVLmV7LLk9eYuwWawBw==
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

2026-09-17T11:15:51.534901ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042194
observed 4e33ac94669eda8b6857d7ae117c85fd...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:51.517093ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042194/manifest.json
observed 7d033290ab5810f3fab99f1a689be949...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:51.500249ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042194/publication.md
observed 873b4b90ee94d327f470c009089dfd31...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:15:51.481868ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000042194/publication.txt
observed 94e21099c570915a060b967789821123...
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.