OpenTechnical

OT-2026-000104536

Publication integrity record

Foam pad vacuum gripper, three zone face, plant vacuum fed, pressure sensor per zone, 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-2026-000104536) never changes.

Identity and time

Publication numberOT-2026-000104536 · never reused
Internal UUID01a0aea7-239f-7c5c-9f18-e9a09dde6cdf · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:16:24.420933Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000104536
StatusPUBLIC

Content hashes

Canonical textc860d7c3f60940ab1c380d2a8fe247295f903d1c08dee8d43e87dc8503efcd77
Markdown921ece3cff9ee2b84eafccde9b51135c019f789230f3905a49917d3d4105bf62
PDF
Publication page7b8ff3e0e4ac6c3798a1c287f6941cb9e71de5b6422bf8fad454af02e64fd772
Manifestbc6d6d21ad70ca6df413c7774971f9fc0b3b07cb8235f2353b6f1dbe65cc56f7

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
Signature1EqpRFyjtQdkKPFg6MUdjDAdbNgXcOOTkEk2YGJuh8vyfBePHa7GvBl6ISo03x0lK/KLyfAi21sRJxnR6yQ8AQ==
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

2026-09-17T09:20:03.251024ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104536
observed 7b8ff3e0e4ac6c3798a1c287f6941cb9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:03.235204ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104536/manifest.json
observed bc6d6d21ad70ca6df413c7774971f9fc...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:03.217555ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104536/publication.md
observed 921ece3cff9ee2b84eafccde9b51135c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:20:03.200120ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000104536/publication.txt
observed c860d7c3f60940ab1c380d2a8fe24729...
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.