OpenTechnical

OT-2026-000078261

Publication integrity record

Two bellows cup vacuum gripper, two zone face, four outlet manifold, pump fed, pressure sensor per zone, 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-2026-000078261) never changes.

Identity and time

Publication numberOT-2026-000078261 · never reused
Internal UUID01a0ae95-7c27-7b5b-a6fd-798dfbef2333 · 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-2026-000078261
StatusPUBLIC

Content hashes

Canonical text673c5788c38aacb9e1a91fb2e58044cfed6211f4fb8aa20fae4015d84c64ce43
Markdownf99e238353d33e640be82803fe12b17a3dcb3c51c7111baf3be8f863fc6f503d
PDF
Publication page2af9f8a2541afc58508ba0064e155f8f21a0e64e44cdfc69057ba769f894fed0
Manifest284521c3f5f4abc617beffb4db5d074f83ab42ff36deacec53761d018b5ae788

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
SignatureJ8z+GUaCF+e6/TtyULVV28P/WwidFMF49KqfTOjz1icoomCUKGqAXmtg1Bx754CpLGcl0vuExibFXdjU1nzKAQ==
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

2026-09-17T10:06:13.285589ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078261
observed 2af9f8a2541afc58508ba0064e155f8f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:13.267700ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078261/manifest.json
observed 284521c3f5f4abc617beffb4db5d074f...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:13.249971ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078261/publication.md
observed f99e238353d33e640be82803fe12b17a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:06:13.231121ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000078261/publication.txt
observed 673c5788c38aacb9e1a91fb2e58044cf...
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.