OpenTechnical

OT-2026-000003973

Publication integrity record

Porous face vacuum gripper, four outlet manifold, pump fed, pressure verified

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-2026-000003973) never changes.

Identity and time

Publication numberOT-2026-000003973 · never reused
Internal UUID01a0a90b-a1bb-750a-a871-a51c045e0f09 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:08:26.942121Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000003973
StatusPUBLIC

Content hashes

Canonical textc05b68abb1757d54af3a8b8dd97e5941bfef224f6b3163c9c4ae2dcbfacc9f3d
Markdown7f0d2b384a2dc7908d1873ac5dbf2504df0c80aafe7acb856ff1c3bdb718401e
PDF
Publication pagecf197c7f492d22c9c6140057b84e242afb9337f763fa1c6b108b849e0d0cc90f
Manifesta01abefd85cf2f4822151c7e47e620e43988da05b550d4475440ebd969e06bae

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
Signature/SRoFdg7z29/1BEy7OEiJrETGFISPeBgRX+V7WwcXEVuf9j6PoS4QoIX30sMcM/qBM5TfvfGqpwxzy7mjEZaAw==
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

2026-09-16T07:10:08.936168ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003973
observed cf197c7f492d22c9c6140057b84e242a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:08.910457ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003973/manifest.json
observed a01abefd85cf2f4822151c7e47e620e4...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:08.895620ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003973/publication.md
observed 7f0d2b384a2dc7908d1873ac5dbf2504...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:10:08.878934ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000003973/publication.txt
observed c05b68abb1757d54af3a8b8dd97e5941...
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.