OpenTechnical

OT-2026-000003841

Publication integrity record

Porous face vacuum gripper, six outlet manifold, pump fed, pressure verified, closed cell

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-2026-000003841) never changes.

Identity and time

Publication numberOT-2026-000003841 · never reused
Internal UUID01a0a90b-3858-7f26-95fc-ace5b74307ca · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:07:59.963304Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003841
StatusPUBLIC

Content hashes

Canonical texta6943e7c1140cab18c95d1000c878449c843265d8cb4600bc237efa4df4a4572
Markdown28f6520a3f23b0f7ce4566e532856d74fb70b43f5f7e2e03c92557ee5dd3e9ce
PDF
Publication pageb2284f491fe73858deece4c7332629868f35ce2bf02039979ea5e933971376a6
Manifest8f2406e7f237101b59cb6877ca2cd3662f00892aa68b12e78a56d95ab5573f08

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
SignatureB5iQ6w5fa3iSel6sMeH0BbvKyhIOAKO3dYAVhvGmLxz3BVFACIaki/xkv5HjLxpS4Kq1snrEALZEl+Gp/Pe9Bg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T07:27:02Z
batch OT-TS-2026-W38-009 · RFC 3161 token · inclusion proof
root aada101caea153fd76622afa3661a5b8...

Independent retrieval

2026-09-16T07:10:17.148084ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003841
observed b2284f491fe73858deece4c733262986...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:17.132969ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003841/manifest.json
observed 8f2406e7f237101b59cb6877ca2cd366...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:17.117424ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003841/publication.md
observed 28f6520a3f23b0f7ce4566e532856d74...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:17.099864ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003841/publication.txt
observed a6943e7c1140cab18c95d1000c878449...
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.