OpenTechnical

OT-2026-000078474

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, two stage ejector, vented after 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-2026-000078474) never changes.

Identity and time

Publication numberOT-2026-000078474 · never reused
Internal UUID01a0ae95-7c28-72df-b5a3-0c93c999718e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:57:07.483031Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000078474
StatusPUBLIC

Content hashes

Canonical text25ccf0ad27d7f28edcba071851588cdd0efe35698083c746db7f618a581ef039
Markdownad6642014989ed9ef17d9ae67530e717db117e7a16d60a0bc73310eafaf2b4da
PDF
Publication page653847021d6e4932a29d83d8e26154ae7800671c1b07e5aa0bcf5cb8280743cb
Manifest75074d04f2c96310ffe2de428aea9af835663ad6b8d442b4deafd06240a4d398

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
SignatureC5y+gCm3/+yooZYjcvAurDmfzoijtWYOM9X6z7ZnmaIzgWBYxJpL00c4c9Q02TLQWM+OUi3B24pYq5vhbYO5Bg==
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

2026-09-17T10:06:28.909548ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078474
observed 653847021d6e4932a29d83d8e26154ae...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:28.890588ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078474/manifest.json
observed 75074d04f2c96310ffe2de428aea9af8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:28.871419ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078474/publication.md
observed ad6642014989ed9ef17d9ae67530e717...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:28.851290ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078474/publication.txt
observed 25ccf0ad27d7f28edcba071851588cdd...
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.