OpenTechnical

OT-2026-000004567

Publication integrity record

Porous face vacuum gripper, two outlet manifold, plant vacuum 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-2026-000004567) never changes.

Identity and time

Publication numberOT-2026-000004567 · never reused
Internal UUID01a0a91c-30f4-76a1-bcc3-074c090461c5 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:26:32.184031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004567
StatusPUBLIC

Content hashes

Canonical text32a1ad1d7aad06dec4c0e9501bea0052c2189aa906de9d89328b4f1f492bbac6
Markdown9cd7f38725a92edf067625bccc0e7f307f3f537eb1eab8460c056932a6023e41
PDF
Publication page23a56dd3322c12d247a6a3d70695323f468393bb1ff70ba7781db928789ea44c
Manifest610fe6cf88bd44b5068625a08cef47effd8bd964063c61b33a8a7a29df2203a6

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
SignatureHGPP3aAaptq6UUbE4YrxbXPJIxfuQsqPkYb6CAamCwsUxlr721Z9BWNNw00RG6m6MwsTlelq066A78MRQZMNDw==
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

2026-09-16T07:30:14.120707ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004567
observed 23a56dd3322c12d247a6a3d70695323f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:13.989364ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004567/manifest.json
observed 610fe6cf88bd44b5068625a08cef47ef...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:13.976517ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004567/publication.md
observed 9cd7f38725a92edf067625bccc0e7f30...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:13.960225ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004567/publication.txt
observed 32a1ad1d7aad06dec4c0e9501bea0052...
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.