OpenTechnical

OT-2026-000087729

Publication integrity record

Foam pad vacuum gripper, two zone face, per zone isolation, single stage ejector, 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-2026-000087729) never changes.

Identity and time

Publication numberOT-2026-000087729 · never reused
Internal UUID01a0ae9a-cd55-7261-8289-c73c231480be · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:02:55.852518Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000087729
StatusPUBLIC

Content hashes

Canonical textd53affbde53118933aaf1d68b6fc734cbcc5ca9bfb314968841f74a7ffccfcc0
Markdown9ab94994dda8e90e28d39aa36fcfc5f0a1dd282737f1f07d25327e60f3615179
PDF
Publication page6535e0e77aeadb011284e143cafb821aeeef8ff9f7f31c9ff98d4ef179343a23
Manifest95cd16358ca3921ef9ddcef42be7277704ea06dd566dee62965813604d04a74c

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
SignatureWGub1AJF/2tC0z5aJdfepRbrIwoZGjJbB5sYoMOVtUndRyBdRt20amB4nWho+uDC+vI5hRDY/qj9vgAd2WjGCA==
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

2026-09-17T09:51:10.956459ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087729
observed 6535e0e77aeadb011284e143cafb821a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:10.939631ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087729/manifest.json
observed 95cd16358ca3921ef9ddcef42be72777...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:10.924898ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087729/publication.md
observed 9ab94994dda8e90e28d39aa36fcfc5f0...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:51:10.909306ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000087729/publication.txt
observed d53affbde53118933aaf1d68b6fc734c...
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.