OpenTechnical

OT-2026-000074419

Publication integrity record

Foam pad vacuum gripper, two zone face, four outlet manifold, two stage ejector, 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-2026-000074419) never changes.

Identity and time

Publication numberOT-2026-000074419 · never reused
Internal UUID01a0ae93-717a-7758-992c-dcd0c335ce4c · 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-2026-000074419
StatusPUBLIC

Content hashes

Canonical textc972f51a8b4774c804e4e14d273a4781e2aaef791566178a2b9305242c7de227
Markdown9d76bdb47b92a42c295f61a511c22c19944530fa9be9d9276a1793818f8a05cc
PDF
Publication pageab1d96dfb5fbd8da8b0be3bbf089912bed7fe6f32ebf138f39fa4930f3a23ba5
Manifestf6617471838e5b058b4b07bfc33b43148d130058b80869f772a5fcad38c207e2

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
SignatureaGU0pdIongYKOPTerdiCDpI3mJ8Kh5xIHahtyaVCSR6B80y90sZRBiqv26GJ2Out4qvEZdMYoD0hcFPc+NA7BQ==
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

2026-09-17T10:19:21.958574ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074419
observed ab1d96dfb5fbd8da8b0be3bbf089912b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:21.940737ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074419/manifest.json
observed f6617471838e5b058b4b07bfc33b4314...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:21.922042ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074419/publication.md
observed 9d76bdb47b92a42c295f61a511c22c19...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:21.903140ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000074419/publication.txt
observed c972f51a8b4774c804e4e14d273a4781...
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.