OpenTechnical

OT-2026-000022403

Publication integrity record

Three cup vacuum gripper, three zone face, common isolation valve, pump fed, 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-2026-000022403) never changes.

Identity and time

Publication numberOT-2026-000022403 · never reused
Internal UUID01a0ae6f-f4fd-7dcd-a8e7-b6a3094c79a2 · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:16:07.953226Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000022403
StatusPUBLIC

Content hashes

Canonical textb3e0203c3ee3846246bea7f9be81d52aa703c934afff2a0fe13c757a62f6bf35
Markdown7987631849de5ce51658878d4400f6a67d07ce43887cfec354ad1d6aa362b99e
PDF
Publication paged74e0c5c9f77bc28a4ff28c0b4fac913a7140e4858ba37862ccb9b46d99b5a06
Manifesta961c65cb865c2f08074d600e89bd56bfb6b23ef73a2bc62e8cec08ddc69eaa1

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
SignatureR6gKOje37sscW1FgQ8cFgpIQ6sShRXhyQB85sENXbP7f9faEIUYo8ub2X7OWY0KXIgZc9nmErlMm+siRrO2ZBQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-17T08:42:32Z
batch OT-TS-2026-W38-020 · RFC 3161 token · inclusion proof
root 7c99e0163c3f1d2dc0f1dec0442e2af7...

Independent retrieval

2026-09-17T11:53:47.203069ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022403
observed d74e0c5c9f77bc28a4ff28c0b4fac913...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:47.185132ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022403/manifest.json
observed a961c65cb865c2f08074d600e89bd56b...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:47.167454ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022403/publication.md
observed 7987631849de5ce51658878d4400f6a6...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T11:53:47.149300ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000022403/publication.txt
observed b3e0203c3ee3846246bea7f9be81d52a...
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.