OpenTechnical

OT-2026-000089800

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, plant vacuum fed, manifold pressure sensor, sustained 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-2026-000089800) never changes.

Identity and time

Publication numberOT-2026-000089800 · never reused
Internal UUID01a0ae9c-1a23-7d96-9a53-8bb55c68e582 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:04:21.039513Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000089800
StatusPUBLIC

Content hashes

Canonical text9f9871fed26e12baa267ab12a270a77ff5555110ac0d992504bb54f088bb1a66
Markdown5930338fd2fcffe31a54752bdd0922b56dbbd226a0e725c5e121084cd2615d2e
PDF
Publication page6249dfa4c235eb89b9421ba57eb74307edb098902245cafb677e0eea4ecc95bb
Manifestc65bdf7a6c77e5c889e144efa98f58aab79ba0b7614e9551dd5690a09b93426e

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
SignatureCem8wlClR4oywo5Vu3EnOvuHCSUX8AqlAe0FD/RmpHKvG0VdiZht0uUP/uTeOTO+kWxwsmvdJ8m/1xm146DBDg==
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

2026-09-17T09:46:53.548530ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089800
observed 6249dfa4c235eb89b9421ba57eb74307...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:53.531713ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089800/manifest.json
observed c65bdf7a6c77e5c889e144efa98f58aa...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:53.515303ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089800/publication.md
observed 5930338fd2fcffe31a54752bdd0922b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:46:53.498645ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000089800/publication.txt
observed 9f9871fed26e12baa267ab12a270a77f...
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.