OpenTechnical

OT-2026-000043613

Publication integrity record

Three cup vacuum gripper, three outlet manifold, common isolation valve, pump fed, sustained blow-off 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-2026-000043613) never changes.

Identity and time

Publication numberOT-2026-000043613 · never reused
Internal UUID01a0ae7b-92d0-7ebc-88f5-7d275d0214c5 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:28:49.254972Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000043613
StatusPUBLIC

Content hashes

Canonical text4e461b68c1d6cb14829cbc7092800c1ee1d7407eb63b909ea94433e2f339f240
Markdown2e3d4c966a48452d0f108fdada583d67ea04dc532597f9fd5504f998c01e2763
PDF
Publication page7a0d151839a02fe3ad4c69d7d620240efc3486819d73843954c76992b3d9b417
Manifest682cdde6b84eb75162db859a386f93200f8726d64de15ff96767882359b1b89f

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
SignaturerPsQdOFczBrymx1ut4zXu365EIsShco4rZ7vrJsf5b6voAfebldgzH6IGQMtc+DHc0bxpx+dFI3X/PShaX8xAg==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:13:04.687113ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043613
observed 7a0d151839a02fe3ad4c69d7d620240e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:04.665752ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043613/manifest.json
observed 682cdde6b84eb75162db859a386f9320...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:04.641730ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043613/publication.md
observed 2e3d4c966a48452d0f108fdada583d67...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:13:04.620265ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000043613/publication.txt
observed 4e461b68c1d6cb14829cbc7092800c1e...
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.