OpenTechnical

OT-2026-000083399

Publication integrity record

Foam pad vacuum gripper, three zone face, plant vacuum fed, 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-2026-000083399) never changes.

Identity and time

Publication numberOT-2026-000083399 · never reused
Internal UUID01a0ae97-c964-70bb-8d1d-22a2c8d4998b · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:59:38.321156Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000083399
StatusPUBLIC

Content hashes

Canonical text25069d810b1628d74696d749cfef89e32c7a2e9cc020367ea632539520784a3a
Markdown659978527b03d5bf467f4726d7015f13cbf613398465ac31db39c2486d18529f
PDF
Publication page88324bcf04e0a7113b28d83a8abedcf883663dfee6434e34e7a5730b05901c12
Manifest7aa7f0643ba5ce74d2cfecba58e126b22e9b05fffd558cd49ceba22e8aada7ab

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
SignaturebpiqHxSN3c43TbUGw6p2xpw0uAn5t4yePFZht+r1h3GttBucTwI6b6wlB8PdedDVJz1BYOjgrB37PLUIWU+pCQ==
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

2026-09-17T10:00:52.020923ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083399
observed 88324bcf04e0a7113b28d83a8abedcf8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:00:52.004972ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083399/manifest.json
observed 7aa7f0643ba5ce74d2cfecba58e126b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:00:51.988076ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083399/publication.md
observed 659978527b03d5bf467f4726d7015f13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:00:51.969018ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083399/publication.txt
observed 25069d810b1628d74696d749cfef89e3...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:48.579595ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083399
observed 88324bcf04e0a7113b28d83a8abedcf8...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:48.563392ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083399/manifest.json
observed 7aa7f0643ba5ce74d2cfecba58e126b2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:48.548715ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083399/publication.md
observed 659978527b03d5bf467f4726d7015f13...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T09:57:48.533632ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000083399/publication.txt
observed 25069d810b1628d74696d749cfef89e3...
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.