OpenTechnical

OT-2026-000077209

Publication integrity record

Foam pad vacuum gripper, three zone face, common isolation valve, single stage ejector, pressure sensor per zone, 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-2026-000077209) never changes.

Identity and time

Publication numberOT-2026-000077209 · never reused
Internal UUID01a0ae94-f508-7383-a5c0-ea26f5c3cc8e · UUIDv7, RFC 9562
Publication timestamp2026-09-17T08:56:32.796581Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000077209
StatusPUBLIC

Content hashes

Canonical textf59be3c12b960597b67cede91d87e3bd294732a80c5997b26fbc8e0907f12955
Markdownf5b0e4c6acadf0730f8da610bb04ae7893fd111dfb7e9efe475a39f8f8d286a1
PDF
Publication page4e8b5154cc5ac76140f64b100021e9ac2eb81967a237ea9d9ca8bd15fe94c579
Manifest596acac41dd481b917a8aef551fb4940afccfb8b2e539f641e3afa8af3a825a0

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
SignatureSctdNpSi3wOzhE7O9VhA+yXkjxibNBwH1zMw+AIEgDONyCKpDR54AMc099NrHtvYDqB+dlH/KJBNGG2QZhp9Bw==
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

2026-09-17T10:08:48.566706ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077209
observed 4e8b5154cc5ac76140f64b100021e9ac...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:48.546307ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077209/manifest.json
observed 596acac41dd481b917a8aef551fb4940...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:48.514347ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077209/publication.md
observed f5b0e4c6acadf0730f8da610bb04ae78...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-17T10:08:48.493668ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000077209/publication.txt
observed f59be3c12b960597b67cede91d87e3bd...
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.