OpenTechnical

OT-2026-000091472

Publication integrity record

Three bellows cup vacuum gripper, three zone face, three outlet manifold, pump fed, pressure sensor per zone, 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-2026-000091472) never changes.

Identity and time

Publication numberOT-2026-000091472 · never reused
Internal UUID01a0ae9c-f16d-7011-a37c-a1ac0d46f51b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T09:05:16.158740Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000091472
StatusPUBLIC

Content hashes

Canonical texta3c362c60254e13b7ee58aadad1f9ce133406aeeeac95a53fc66ab5723d36627
Markdowne39e5f69e6b7296fffd087d6feecf495bcf3e20a8eb5eeabca5d1136a607764a
PDF
Publication page4ead44daef22bef277deae4299ffae5bcf169b32a5e6e5ecdd2e9b41b5fa60de
Manifestccdbe9fe61bed1e52dbb00d477c51114b783e225424ef58660f0a89af6da2d9f

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
SignatureTwlrhQ/8zhN8XDUi44FqCSgKlH4ffp7ywzmidNySmV0gCLQlKzmyyluI2SSgbpFf9He1LAzQy2WpHonmdTPaDQ==
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

2026-09-17T09:43:43.455012ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091472
observed 4ead44daef22bef277deae4299ffae5b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:43.436835ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091472/manifest.json
observed ccdbe9fe61bed1e52dbb00d477c51114...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:43.420724ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091472/publication.md
observed e39e5f69e6b7296fffd087d6feecf495...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:43:43.402941ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000091472/publication.txt
observed a3c362c60254e13b7ee58aadad1f9ce1...
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.