OpenTechnical

OT-2026-000073642

Publication integrity record

Two bellows cup vacuum gripper, two outlet manifold, common isolation valve, pump fed, manifold pressure sensor, vented 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-2026-000073642) never changes.

Identity and time

Publication numberOT-2026-000073642 · never reused
Internal UUID01a0ae93-2b8c-79c6-995b-010926e22d03 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:54:35.679268Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000073642
StatusPUBLIC

Content hashes

Canonical text2c11d4dcaf3ad91a2a564a0dcf529140454f783eafd3ced3cc41c8a880d4ff5e
Markdown7b0d4dbbe48379fdc073c7150822d8018376df4d3a085986ae147bd2f6ae72c9
PDF
Publication paged99d4ed674f0fca1704e3227a180b481fbdd9008344c33594940547a7be24d03
Manifest63e6c32bcefc579113f831b52d9277c9863ff8c0547bb287ca5c27cdd7edfb0b

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
SignatureuPwFroMs52G864UtqNTBhvLvn8NqqURKOwq+SsyaZcHRcPjHI42mn+SLgb1yHHn7jnDTtJ6vlCSuLOzRathjBg==
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

2026-09-17T10:19:41.343628ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073642
observed d99d4ed674f0fca1704e3227a180b481...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:41.325782ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073642/manifest.json
observed 63e6c32bcefc579113f831b52d9277c9...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:41.308933ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073642/publication.md
observed 7b0d4dbbe48379fdc073c7150822d801...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:19:41.291418ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000073642/publication.txt
observed 2c11d4dcaf3ad91a2a564a0dcf529140...
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.