OpenTechnical

OT-2026-000088029

Publication integrity record

Four cup vacuum gripper, four zone face, per zone isolation, pump fed, supply line pressure sensor, sustained 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-2026-000088029) never changes.

Identity and time

Publication numberOT-2026-000088029 · never reused
Internal UUID01a0ae9b-1aa6-7862-a3fe-0a43077097c7 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:03:15.638297Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000088029
StatusPUBLIC

Content hashes

Canonical text6d854f19f0e97b03b93cc8f37a15afd4e4e4148b515d96d065c38725c949ed50
Markdown2dc98702a56cf8c923e6a9e569f4474eb3d02410dd4f5df85839cc9806ae009e
PDF
Publication paged17b21a069a59c29e2864b0155fc3185677887cead051f1a3bd81cb572b58444
Manifest78b0c3b0ff3e2dbc5bd5c427a5f8056e07b80cfe1d316e3fec74691b3b5cfa26

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
Signature2eTsskvrK9domyfdSbf7vq9+I6JsIGlZQBBSTpmN52XmSnnjWifCu9gibMYnAwPt6uRARGkdxECI/atO3QGMBw==
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

2026-09-17T09:49:24.952947ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088029
observed d17b21a069a59c29e2864b0155fc3185...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:24.934573ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088029/manifest.json
observed 78b0c3b0ff3e2dbc5bd5c427a5f8056e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:24.917315ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088029/publication.md
observed 2dc98702a56cf8c923e6a9e569f4474e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:49:24.898610ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000088029/publication.txt
observed 6d854f19f0e97b03b93cc8f37a15afd4...
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

OT-CUSTODY-2026-W38OpenTechnical-Custody-2026-W38.tar.zst
f2fc69d02142424a578267e5e3a6d3bb... · 402,218,449 bytes · held by held on site pending an external custodian · retention permanent