OpenTechnical

OT-2026-000077389

Publication integrity record

Four bellows cup vacuum gripper, four zone face, common isolation valve, plant vacuum fed, pressure sensor per zone, 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-2026-000077389) never changes.

Identity and time

Publication numberOT-2026-000077389 · never reused
Internal UUID01a0ae94-f509-7ec6-b4fe-ea4317486c16 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077389
StatusPUBLIC

Content hashes

Canonical text002b9d265c2159d8ba78e44c97ab77e7e03fc7e45c9b591b94181231ae8d9e87
Markdowne131f60c6c4bd85cbb7187b23ccba134a3b3076845b644c583b3c9b6ddf2163b
PDF
Publication page98b03aec1fce5bb91121958e0b97a503aafbbd9780569ed26d27ad15a5e143b2
Manifest172fd9c6cd2873210c958afe99203dc5166ae6dac07a705c12a9f82a9c90e338

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
SignaturerJTIGG8nmTMd3WnCOlR96knORZhobmOrgJgq412h6p4+HN1N/HH6Djcs/cZPbqODEkMJdgWn7yqv7VAoyL/FCQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:09:02.153935ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077389
observed 98b03aec1fce5bb91121958e0b97a503...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:02.134515ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077389/manifest.json
observed 172fd9c6cd2873210c958afe99203dc5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:02.116976ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077389/publication.md
observed e131f60c6c4bd85cbb7187b23ccba134...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:09:02.096751ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077389/publication.txt
observed 002b9d265c2159d8ba78e44c97ab77e7...
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.