OpenTechnical

OT-2026-000072476

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented before set-down

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-2026-000072476) never changes.

Identity and time

Publication numberOT-2026-000072476 · never reused
Internal UUID01a0ae92-89d8-737b-860e-3a2cfd8b174d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:53:54.283203Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000072476
StatusPUBLIC

Content hashes

Canonical textb90ec31e174528be33ba4ee3464bf786d8ea84f58fce0906cd51f630d49552f0
Markdowne405b89cad0da37f59491baf3f14bb09c939acc6fb63d4e13331eead8673b6a1
PDF
Publication pageda7bbe749bb7bb05ebd4652fa5d5529a94698022c8b5ff0f2439a5acf749455b
Manifestb4aa7a57b6eec72ac74677c01d200c036d1d40459b05cc2e587d74fb9eec910c

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
SignaturetKF2tisuvccSx2hMLcJ9k6b//zJ0d2Bvd7Hu0TAIGr+AuxL75keGGiKzTKpa67QLapIz/+btYEHwbCJ51SMjBQ==
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

2026-09-17T10:22:17.023049ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072476
observed da7bbe749bb7bb05ebd4652fa5d5529a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:17.003177ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072476/manifest.json
observed b4aa7a57b6eec72ac74677c01d200c03...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.986004ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072476/publication.md
observed e405b89cad0da37f59491baf3f14bb09...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:22:16.970827ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000072476/publication.txt
observed b90ec31e174528be33ba4ee3464bf786...
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.