OpenTechnical

OT-2026-000067031

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, 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-2026-000067031) never changes.

Identity and time

Publication numberOT-2026-000067031 · never reused
Internal UUID01a0ae8f-14fe-7f3e-8e18-3f754630759d · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:50:07.760615Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000067031
StatusPUBLIC

Content hashes

Canonical textb5ebd514ff8abe1575dfb331fbe7df4ca4069ccee454d079edde4ae1c8be1ed5
Markdownca220622bc21bbc4d57db62aa3eb1cb287abc7030aef34bf09bda81e0c2291ab
PDF
Publication page5fef500070821285491764f773c1a276df7080cca2df2f5f21d559c25a4419db
Manifesta0e2a774294f4aaac59c6a75b26c85b52be1dbcedbaabaf3dbe3a7ffd494f716

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
SignatureqVoMoJQygAxNhCTDgE0b0Eao931aBYOug13UICMiqCrvfG6QRtjFx6/SyjkVkbmqymcHnZnVKWlbBnCjao01AQ==
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

2026-09-17T10:32:16.015265ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067031
observed 5fef500070821285491764f773c1a276...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:15.997479ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067031/manifest.json
observed a0e2a774294f4aaac59c6a75b26c85b5...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:15.978728ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067031/publication.md
observed ca220622bc21bbc4d57db62aa3eb1cb2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:32:15.961007ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000067031/publication.txt
observed b5ebd514ff8abe1575dfb331fbe7df4c...
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.