OpenTechnical

OT-2026-000004510

Publication integrity record

Porous face vacuum gripper, two outlet manifold, three stage ejector

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-2026-000004510) never changes.

Identity and time

Publication numberOT-2026-000004510 · never reused
Internal UUID01a0a91a-6414-7a17-94af-52cbb3456bb4 · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:24:34.202025Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000004510
StatusPUBLIC

Content hashes

Canonical text6e545ed345ae06d88a5bf4b10064f5741307b4d843e3c5b002703af9101b4124
Markdown037c428eaac200f9a28a0aea7d78b11a99b0a2a521c0252dce7c7b96aef84d6e
PDF
Publication pagebaba85ae0d25a2c237251c685773b092e104d1ea06e2be46cac36840b6f07e7e
Manifest1493e3e694b51f8419d14935ca8f5d8cf814b49d3280b25f33ea9a595a1145fe

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
SignatureDC2OqiKkjoL56XLqCeWP6dQAJaQ1Rh3XYPDcKQKSPUQxx2BYeE1mLNwxWEZ4wa7FSTIBYPnYQC6GJDRmHvneAw==
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

2026-09-16T07:30:19.933206ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004510
observed baba85ae0d25a2c237251c685773b092...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:19.921567ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004510/manifest.json
observed 1493e3e694b51f8419d14935ca8f5d8c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:19.909144ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004510/publication.md
observed 037c428eaac200f9a28a0aea7d78b11a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T07:30:19.897261ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000004510/publication.txt
observed 6e545ed345ae06d88a5bf4b10064f574...
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.