OpenTechnical

OT-2026-000074557

Publication integrity record

Two cup vacuum gripper, two zone face, four outlet manifold, pump fed, manifold pressure sensor, 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-2026-000074557) never changes.

Identity and time

Publication numberOT-2026-000074557 · never reused
Internal UUID01a0ae93-717b-7ac9-8f11-a02ed24e97c0 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:53.574555Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000074557
StatusPUBLIC

Content hashes

Canonical text5c5618c242591fd03df2780bca1365b0445da3d2fa8eee487daf235623219195
Markdownf264e4fc24cee79c6d2ba6539eefa9c76168b8e4c4a05d0a4f345c56794bc854
PDF
Publication page27542bd3483b57ee1106b6bb281f616936bb327d47c40bf7a50d41325b5f44c1
Manifeste2d2b0c7466a01cc8b35d4f43e31c58a5ffbbb0b4b2ace5d6975d70898f8294e

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
SignatureLOp6t112UYxNeFm7xLii7RGNua8gIRE00jdmiqng469Q+6PdIKq9Hc3g62xitN2awhMQpzyCHIzBAEEXOZMQAQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T09:07:03Z
batch OT-TS-2026-W38-022 · RFC 3161 token · inclusion proof
root 061e9ae86cc297cdce873398aaec3f72...

Independent retrieval

2026-09-17T10:19:34.214895ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074557
observed 27542bd3483b57ee1106b6bb281f6169...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:34.192192ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074557/manifest.json
observed e2d2b0c7466a01cc8b35d4f43e31c58a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:34.171027ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074557/publication.md
observed f264e4fc24cee79c6d2ba6539eefa9c7...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:34.154300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074557/publication.txt
observed 5c5618c242591fd03df2780bca1365b0...
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.