OpenTechnical

OT-2026-000005422

Publication integrity record

Bellows cup vacuum gripper, per zone isolation, plant vacuum fed, pressure verified, contact triggered

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-2026-000005422) never changes.

Identity and time

Publication numberOT-2026-000005422 · never reused
Internal UUID01a0a938-82c3-7c9c-844c-ed97770e49ae · UUIDv7, RFC 9562
Publication timestamp2026-09-16T07:57:28.133573Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005422
StatusPUBLIC

Content hashes

Canonical text99f12a135650b297a094c0a80ae39677717b3d267dd8a2114457f32b25b158ef
Markdowna1b81c8cf61b586a7ae3e5bf8079cfd2f84b5b9ba4660896375ae4fe6f1d6465
PDF
Publication pageeca6102b4463bd4d169aaa6eadc7834304f4ac8331e16d47f696ee56185465b0
Manifest70b46add8e9983ebda1941b920a48b0a280559db3f7bb37078d87ff676fdd6b6

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
SignaturexzzYLVEZya+Xhu5wh2d3ZHdFyQw29IAa5nJR8rzP14nKUZipULcvjtTMjBzFEqh7TiesIxI0Egb1nCByB5xCBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:07:02Z
batch OT-TS-2026-W38-011 · RFC 3161 token · inclusion proof
root 8f13af7374aef42943b7bbe6a279c57a...

Independent retrieval

2026-09-16T08:00:11.422619ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005422
observed eca6102b4463bd4d169aaa6eadc78343...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:11.405962ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005422/manifest.json
observed 70b46add8e9983ebda1941b920a48b0a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:11.390311ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005422/publication.md
observed a1b81c8cf61b586a7ae3e5bf8079cfd2...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:00:11.374234ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005422/publication.txt
observed 99f12a135650b297a094c0a80ae39677...
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.