OpenTechnical

OT-2026-000015291

Publication integrity record

Foam pad vacuum gripper, four zone face, common isolation valve, pump fed, 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-2026-000015291) never changes.

Identity and time

Publication numberOT-2026-000015291 · never reused
Internal UUID01a0ae6d-ef48-74d3-8f0f-8707e4b6c994 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:13:55.421510Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000015291
StatusPUBLIC

Content hashes

Canonical text7d377d1b6f698d8b30a4feea877aef9ec7440724ead3fccdc7d8b977215b8884
Markdownc0eddcf8b3b99099f29bf105ff9c1496ef116bd2e42bb5e2f71eb6ec3aeedc81
PDF
Publication page1a5b6590cbe1897dd748a21d60d1c416e0b6aa05269d72faf6da7e8fb5eb47f0
Manifest2995da6ae96272117d77aedb8c2510b267640ef8896adbce334db885eb46d08c

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
SignatureXOzcA4tGAQ6VbxYAwrwnO98EmmC3k7rxXbDqEYU9rXktEulUpvxk1GEq2OfF0YEAixkI3KB6ckEf60ViDsR/DQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

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

Independent retrieval

2026-09-17T12:05:58.640574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015291
observed 1a5b6590cbe1897dd748a21d60d1c416...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:58.622734ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015291/manifest.json
observed 2995da6ae96272117d77aedb8c2510b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:58.605815ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015291/publication.md
observed c0eddcf8b3b99099f29bf105ff9c1496...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T12:05:58.587328ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000015291/publication.txt
observed 7d377d1b6f698d8b30a4feea877aef9e...
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.