OpenTechnical

OT-2026-000081298

Publication integrity record

Single bellows cup vacuum gripper, common isolation valve, plant vacuum fed, supply line pressure sensor, vented after 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-2026-000081298) never changes.

Identity and time

Publication numberOT-2026-000081298 · never reused
Internal UUID01a0ae96-f374-7339-92d5-b87532fbb396 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:58:43.461344Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000081298
StatusPUBLIC

Content hashes

Canonical textcd1d980f1d327f9ce342472c1b90119026fd39c245624375aba89c2205d3c360
Markdown65e547c514dd82f2d111a7ac71495304925376b1ef7d70cb2d460c9e13a5c181
PDF
Publication paged1c5e6e4664b02c9435a99fd9bac625aa9755e602ebc16311770913028253d4c
Manifest06ba962517962540463edae011776697aa5dea30706e1d6b9ca9e03419a9781f

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
Signaturea9hg5dr26hMOXiihytE/uFjjNZxL7B1NMmhCmG0TqDm/aky94IM0EJgd1aZeEOURo4MyuU86MRtw8DHHzCjeCA==
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

2026-09-17T10:01:24.522905ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081298
observed d1c5e6e4664b02c9435a99fd9bac625a...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:24.505954ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081298/manifest.json
observed 06ba962517962540463edae011776697...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:24.487853ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081298/publication.md
observed 65e547c514dd82f2d111a7ac71495304...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:01:24.469983ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000081298/publication.txt
observed cd1d980f1d327f9ce342472c1b901190...
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.