OpenTechnical

OT-2026-000056198

Publication integrity record

Foam pad vacuum gripper, common isolation valve, single stage ejector, supply line pressure sensor, vented 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-2026-000056198) never changes.

Identity and time

Publication numberOT-2026-000056198 · never reused
Internal UUID01a0ae87-4bd1-72d1-ae6f-5d705a093d34 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:41:37.517586Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000056198
StatusPUBLIC

Content hashes

Canonical text7d7798b420a5e97982fd4dddfe7dbba6e61937a6f4668df98138648d2439c8b3
Markdownb50694e1b33d4f407664ae25f5d6898d388bd0fcedec7ec1e3805eef2acb2ba8
PDF
Publication page5a39a2e844e48d7ea1a17118e99b1b293412e63ffd8fc060634aa5911f9fc81c
Manifest3cf78dd8ba3d66e20c120c1747d889d485d3959f8c6c31b7cb2007a3535bd484

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
SignaturefDFmlM+aMoWOiHMvrBMzHt6BpZg6rEeWO1psv1/ouxWaozdqT7Yvj9ttRdQ8Cg7wHX5uaZiQdGlmk5IB4Sj8AA==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:47:04Z
batch OT-TS-2026-W38-021 · RFC 3161 token · inclusion proof
root 954df3475fbcfbe27467725cfb2ec919...
timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T10:50:40.091071ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056198
observed 5a39a2e844e48d7ea1a17118e99b1b29...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:40.072696ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056198/manifest.json
observed 3cf78dd8ba3d66e20c120c1747d889d4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:40.055640ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056198/publication.md
observed b50694e1b33d4f407664ae25f5d6898d...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:50:40.036844ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000056198/publication.txt
observed 7d7798b420a5e97982fd4dddfe7dbba6...
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.